The thing with freerolls is that at the beginning, rounds 1-2 and then new players popping in, you've got to wait out (or take advantage of) the "All-in" monkeys. Play quality is fairly low early on. Now, late in the tourney, like final table late, you actually do get high quality play. If you can do well on freeroll final tables, I would suggest you equate that to doing well on real money sit-n-go's. You didn't have to weed through thousands of top quality players to get there, but once there you do get the opportunity to see what good play is all about. Kinda like starting a sit-n-go where everyone starts with different chips.
Agree. ABC poker really works here. Besides the AI monkeys you also have limpers with very high VPIP 40%+ trying to score huge pots. Tight Aggressive Poker does really well in the early stages.
bluffing will rarely work, unless you've identified strong LAGs, and you will find players calling you down with mid or third pair even. Be aggressive with strong made hands vs calling stations. Exploit them without mercy.
In the mid stages player pool will have condensed to the more higher quality play that give you more room. Positional play becomes really important in these instances. There's a chance you'll also encounter a luckbox calling station whale that got extremely lucky in the early stages and racked a massive amount of chips with bad play. They will try and be table bullies with any two cards. These are the best players to double/quadruple up with and they will end up making even more dubious calls, tilting their chips away, when they start to lose chips to better players. Watch out for these gold mines.
Late stage play may involve quite a bit of push/fold play (15bbs or less) and it's really important to know you position, table image and play styles of those around you. Table observations of key players from mid stage play might come in handy here, unless you're abruptly unseated. If you're confident of making the final 2 tables then it's worth opening the few remaining (3-5 tables) to see how your opponents play to formulate a game plan to aim at the final table.
Whatever you hone and polish in the freerolls is extremely useful in the micros as well because it's near identical to how things play out at those stakes.
The only exception for freerolls I've seen are the cardschat freerolls. You will encounter much higher level poker from the get go because almost all of them are as good or better than you are (applies to me atleast). Good luck