hey kalle,
thanks for posting and sorry for the delayed response.
so let's take a look at this in pieces, which you did:
preflop - we're likely never going to get a perfect opponent profile on preflop ranges. our best bet is to apply a generic range based on similar player style at this limit. i'd probably discount people flatting with 22-55 and maybe 66, but you never know. for the sake of this discussion, i'll use your range and just encourage you to use that model in the future. you may have been using it here, but i want to make it explicit for anyone else reading.
flop - a couple things stand out.
first, our broadway and suited hands have largely whiffed. that is, we have no solid equity yet. still, we can represent a lot of this equity on the turn if our opponent's response to a bet is to c/c or c/f, since we will be able to rep equity on any 9/T/J/Q/K/A as well as cards putting out a possible backdoor flush draw.
second, even our 98 type hands will benefit from this. Txx boards are quite good in this regard - they seem benign, but actually many connector or gapped connector cards have a three-straight.
so when you are counting your value range, you can tuck a number of these combos in, or you can count them as a hybrid, in the same way you might count betting a non-nut hand on the river for value. your equity when called won't be 100%, but it won't be zero either!
for the purpose of our analysis, let's flatten our opponent's response to c/c v c/f. this isn't a board that seems to get c/r a ton in 2011, but it could just be where i put in my hands.
to your questions:
1) heh. i guess i kind of got to this a bit and i am glad you are thinking the same things. no, KQ is definitely a semibluff. we'd mostly prefer he fold, but we're 'ok' with his calling sometimes. KQ also is good for this since it lacks as much showdown value that AK/AQ have.
instead of classifying as strictly value/bluff, think about equity. for a hand like TT, you could add in X numbers of pure bluffs based on your sizing, or you could add in a greater number of KQ hands.
2) i'm not sure exactly what you mean. do you mean what is the lowest equity that we can call a value bet? don't worry as much about this. we are (pre-river) trying to establish ranges that can continue often enough and get to showdown or win the pot. if we bet something like TT or K2, we could consider the latter so equity-deficient that we may never continue bluffing. real ranges taper off a bit, of course, so that we don't immediately expose our holding after one action.
instead of TT or K2, maybe bet TT KQ and another combo as the math allows....
3) you definitely will want to check back some number of <Tx PPs and stuff like 45. i would be surprised if your opponents play so well that you'll get abused doing this or that it will be better than betting them, unless you can do so for value.
4) this is a pretty cool idea. you definitely want to start thinking like this. try to work within (and slightly without!) the confines of balance. while doing so, remember our ultimate goal is to INDUCE mistakes, not just to prevent ourselves from making them. doing things that people have never seen will be very likely to induce mistakes...