pretty broad question, but yes, youll be looking to reshove over people for value. particularly loose/weak opponants.
we dont ever really want to be limping with that stack size.. even with AA or KK were too deep to just open limp, so its fine to come in for a standard raise.. obv dont want to just shove the monsters, as we want value.
the worst mistake i see is players limping at big blind levels and constantly folding to shoves... they are the players that make sng very profitable.
it can sometimes be correct to open jam hands like small to mid pairs from late position, if you think the blinds are loose and also hands mentioned above AQ+ this is so we dont have to deal with them, flat calling from the blinds then donking an ace high flop etc.. id rather just get the money in so i cant make anotehr mistake in the hand.(by folding to a bluff, by getting it in behind)
when you make a raise, you generally do not want to fold to a reraise very often if at all.. so make sure when you raise a hand, that its worth going with.. OR if the blinds are super tight it can be ok to steal..
just like all tourneys, with 15 bb's getting toward mid to late stage play, we lower our raise size, due to the blinds being a decent proportion of our stack.. and also if we do happen to raise and fold, we lose less chips.
apart from that, post some hands in the tournament HA section, i will generally respond to STT threads..