There seems to a big emphasis in your post on playing bluffs. As Chris says, bluffing is a useless tactic in this level of SNGs.... in fact in the early stages of a SNG, persistent bluffing is fairly useless at any level up! Much better off just playing like the ultimate rock until the blinds are sufficiently high that they become worth stealing.
For me SNGs are two gear affairs, without much room for poker. Ubertight in the early stages, raising only with AA/KK, and potentially calling in position with AK/QQ/JJ type hands, but being ready to fold if the flop is unfavourable..... then when you get to around level 6 where BB is typically going to be around 5th of stack in you haven"t yet played a hand, it becomes a game of shove or fold.
This is a very boring way of playing poker, but for SNGs it returns a reasonable ITM %age - I"m running at around 50% - 60% ITM, with a circa 15% ROI, and that"s more than I make from playing cash! Granted, you will get called and lose every now and again with your push and fold, but more often than not your shoves will get through, and with a bit of luck you will get called on the time that you shove with a real hand.
To relieve the boredom, multitable the SNGs..... but, don"t start 6 games at the same time as if you get to the latter stages in all of them, you can"t pay any of them proper attention. 6 Headsup in one go is tough. I play 6 at a time, but start them 5 mins apart.
