high hands: how do you play them?

[hezster]

I've been beating 0.25/0.50, 0.50/1, and 1/2 O8 full ring for about 3.1 BB/100 over about 5500 hands, but looking at PTO I see what seems to be a glaring leak. In my category of hands containing four cards greater than nine, I'm at -0.09BB/hand, almost twice that of my "rag combo" category (hands containing 78,79,89).

Now I understand that 5500 hands is not nearly enough to do much meaningful statistical analysis, but when I see such a difference from my overall result for what I consider to be somewhat premium hands, I must deduce that I'm doing something wrong. My VPIP for this type of hand is 96.10, while overall it is 23.53, so I think this is the problem.

So when do you play this type of hand in a full ring game?

Only in late position when you can get in cheap?
Only when x players enter the pot where you expect the low cards are out and the flop will come high?
Do you only play those that contain an ace?
Do you ever open-raise with them, for instance KKQT (1 suited), in late position or do you feel it is a one-way hand and so you don't want to mess with it?

Thoughts?