I agree, they certainley stick around with anything, so over short periods eg 1000 hand, 50 bb loss is not uncommon. Also this is the starting hand guide I have been going off do you think it seems correct ?
Group 1: AA, KK, QQ, JJ, TT, AK, AQ
Group 2: AJ, KQ, 99, 88, AT, KJ, A9
Group 3: A8, A7, KT, QJ, QT, JT, K9, 77, 66, 55, 44, 33, 22
Group 4: Axs, K8, Q9, J9, T9s, 98s
Group 1 hands should be played with a raise or re raise from all positions. Most times it is correct to cap the betting preflop except for the instances where you have been 3-bet by a player you know would not do so without Aces or Kings.
Group 2 hands should be played from all positions and should come in for a raise in an unraised pot. These hands can be played even in early position in a raised pot, and in late position hands like AJ are even strong enough for a re raise.
Group 3 hands are playable from all positions but are not strong enough to raise in most circumstances. They are strong enough to come into a raised pot from late position but with a lot of action preflop you should strongly consider getting away from these hands in early position.
Group 4 hands are borderline at best. These are only playable in late position and under perfect circumstances. For these hands you want about 4 limpers in the pot before you.