hey, i never said don't use them if you can't get better. just simply that people who believe they're better than T4 are a bunch of idiots. also i wasn't 'spoonfed' my gear. I started raiding kara back before they hadn't even released a boss guide about it, we learnt the encounters ourselves and found out our own ways of downing the bosses.
now as you said, it's a great starter. my arguement though was and still is that it's not comparible to T4 AND that it's not a requirement for raiding as the mana-etched set + the epics from heroics/ tailoring crafted BoE epics (hence not needing the craft yourself) are more than enough to get into raiding. now if you want to jump into a raiding guild that's no-longer doing kara/gruul/mag with the FSW etc... sets, then go ahead. but your damage on bosses will be **** poor due to having crap all +hit, crap all stam and crap all int (enjoy tapping more often than needed and seeing loads of resists)
now the FSW set is good for when you start,but the below maths will prove that it's not as much of an improvement as people think (it'll also show you it is fairly spec orientated too as to how much of an improvement it is)
i'll put the maths in for you, but if you want to do them yourself. go to elitist jerks, get the latest warlock dps chart. now I've had to use a variation of figures as the results for what each bonus +dmg/shadow/hit/crit will be worth etc... varies from spec to spec (i've taken the figures of how much +dmg each stat is worth).
seeing as we're talking about new locks
for an afliction lock. 700 damage, 10% crit. 4% hit, all the usual talents
spell rotatation: all dots, SB filler
below is what each bonus stat is worth in +dmg
+1shadow = 0.88
+1dmg = 1
+1hit = 0.76
+1crit = 0.14
+1haste 0.69
so, lets compare mana-etched shoulders+chest to FSW shoulders+chest, including most beneficial gems for each
mana-etched = 124.5
FSW = 138
so yeah, as afliction fsw is a bit better
now as destruction
700 dmg, 20% crit, 4%hit, all usual talents
spell rotation: all dots, SB filler
+1shadow = 0.87
+1 fire = 0.13
+1dmg = 1
+1hit = 0.96
+1crit = 0.34
+1haste = 0.89
mana-etched = 139.5
FSW = 139.5
as you can see, if you enter raiding as a destruction lock then it doesn't matter which gear you use, as an afliction lock, yeah you'll benefit a bit from the fsw set, but the difference isn't enough to say "it's a must"
finally, lets get onto the locks in the better gear who're using still using this crap
1300 +dmg, 20% crit, say 13% hit, all dots. SB filler
as a dest lock:
+1shadow = 0.9
+1 fire = 0.1
+1dmg = 1
+1hit = 1.32
+1 crit = 0.52
+1haste = 1.4
as an afliction lock: (same stats, end game there's not much variation on dmg crit and hit)
+1shadow = 0.87
+1fire = 0.13
+1dmg = 1
+1hit = 1.17
+1crit = 0.26
+1haste = 1.05
now i'm obviously not going to compare fsw and mana-etched here, just simply do a bit of comparisons for you. as you can see compared to the poorer geared locks, with the higher dmg, increased hit becomes ALOT more important, as does crit and the now available more readily available haste rating. with these stat value changes, getting improvements on the fsw gear is far from hard. plenty of bosses drop gear that can match or beat it. T4 and ZA gear being the starting point for the upgrades, ssc and tk gear being far superior and bt/hjal outsurpassing it by a massive amount. now if you're unlucky enough to never see the drops, then nothing can be done there. but i've talked to plenty of warlocks who've chosen to not upgrade 'cos they believe fsw is better... those locks don't deserve their spot in those raids imo and belong back in kara/gruul learning to play their class properly.