Switching from BM to SV, will gear gimpFollow

So currently I am cookie cutter BM spec.
I am planing on going to this Heroic Build.

Will my current gear (maxed out for ap) gimp me once I switch to survival?

Also what is the best utilization of the extra talent point?

Max out survivalist, or is it considered overkill?
Max out trap mastery, or is 5% enough?
Put a point in Improved Feign Death, I have experienced several boss fights where I get resisted.
Max out resourcefulness, overkill but good overkill?
Get Wyvern Sting, more cc + a dot whats not to like?

Also what is the functionality of rapid killing in 5-mans? Out of all the 5-mans I've run, I've only experienced one boss fight thats lasted long enough to use two rapid fires.

No longer shall my pet be a Super Sacrificial Bear, but just a Sacrificial Bear. =(

Short answer, yes.

The difficult part about survival is that your damage is going to be gimped quite a bit if you don't have at least 500 agi before LR. You are going to want to switch your AP gems (and some of your crit gems) for +8 agi. Also, a cheap (and good) upgrade would be necklace of the deep, as you can socket that with 2x 8 agi gems as well.

The sonic spear is great, but you will want to drop Savagrery and go with the +35 agi... as expensive as that is :( If you have a secondary weapon (eg Hellforged Halbeard, Blackened Spear, another good +agi weapon) it may be better to keep the savagery on the sonic in case you decide to switch back any any point.

Your gear definitely isn't bad, but it's going to take a bit of re-tooling. For example... your belt, while nice, will probably gimp you a bit unless you are able to get your stats up other places. Some of the simple stuff (eg 12 agi to cloak, cheap to do and VERY beneficial) will help you vastly. You'll still enjoy SV as a CC spec, but you won't be hitting hard unless you can get to about 500 agi. Just by replacing your sockets and picking up a necklace of the deep you could probably pick up a good 75-100 agi.

It often seems silly to pass up a rare or epic item simply because it has no agi, but it really becomes a priority until you can hit a certain point. I myself am at about 650 agi... and I'd like to get a bit higher, for sure. Anyway, I hope this helps! If you have any questions, there are several of us on here :)

I prefer the 26 second trap duration on a 24 second cooldown. That two second overlap (without the Beast Lord set bonus...damn you Kalithresh!) means that I can chain trap a mob just a few yards away from me without having to worry about taking hits between one trap and the next. Very handy for keeping in dps range of the tank mob in narrow corridors like you find in Shattered Halls and Shadow Labs (among others).

I'm currently sitting at 666 Agi (>:D) with at least one +16 AP gem left over from my BM days that I could swap out if I really wanted to. I've basically decided to hold off tweaking any of my gems/enchants for the next couple of weeks because I foresee numerous upgrades in the future, but I can't say for sure which slots those upgrades will go in. (Any Beast Lord set piece I got would immediately replace whatever is currently in that slot. I've decided that when I get my epic PvP boots I'm going to put Cat's Swiftness on them. I can spare the Agility for slightly better kiting ability.) Since my unbuffed crit % is sitting at 27.42, I'm still wanting to up that a bit. Until my agility gets to the 700 range and crit % around 30% unbuffed, I'm going to be focusing on Agility and Crit Rating before AP. Once I hit those targets, I'll evaluate from there.

I've been SV for a bit now. A month maybe and I love it. 2048 RAP, something like 768 agi and 32.3 crit all unbuffed though. Big difference.

As the others mentioned I don't think you will find SV overly effective untill you have around 500 agi (prior to specking in my oppinion). All the same best luck to you and many happy heroics :D

Currently, the cast time on Wyvern Sting is a problem for me. It's nice to have for that occasional, "Oh geez, that caster way over there is about to drop the tank and nobody is doing anything about it" moment, but it's not without complications. For starters, if you don't follow up the Wyvern Sting with a Scorpid Sting to overwrite the DoT, you can't trap the mob. That in of itself can make things tricky (although far from impossible).

It's been announced numerous times recently, however, that Wyvern Sting is being switched to an instant-cast ability like the rest of the Sting family of shots. This, I suspect, is part of what Blizzard had in mind for making Hunters more viable in Arena, but it has great PvE implications as well. We'll finally have a max-range crowd control ability. The sleep effect duration on Wyvern sting is only 12 seconds, but you can do a lot in twelve seconds.

My current spec (0/21/40) reflects the role I choose to bring to a party...namely crowd control, and lots of it. For me personally, my survivability comes directly from my CC, not my ability to take more hits. On trash fights, I allow myself a wee bit more liberty in the threat department (with certain exceptions) since if I pull hate, I have options to manage the situation until the mob goes down.

I would recommend a threat meter for any class, regardless of spec, in any group, but I find it's critical for SV Hunters. Crit damage spikes can blast us up the threat scale in an awful hurry, and on boss fights it's just a whole lot easier to FD before you pull the boss onto you anyways. That way, if you get a resist you can just tone down the damage until FD is up and try to reset again. In other words, points in Improved Feign don't seem worth it to me.