how do you guys balance your range on the turn?

assuming it is a board with a flush possibility and his range is capped because we raised T or we raised F and now barrel through

so my question is that if our bluff range OTT is FD heavy then we are imbalanced on flush runouts as we have no bluffs basically, if we bet he is beat, if we check with sets he is beat, so he can never call us on flush rivers
which would mathematically lead to us to include more pure bluffs OTT instead of FDs only so we can have a balanced range on both rivers, if we of course want him to make indifferent between calling and folding

or because flush rivers only occur 20% of the time we actually don't mind being imbalanced there?

or because he can also have FDs in his range it is better to keep those nut FDs so we can overflush him on a good runout?

100bb no limit holdem:

I raise 3x on the button vs standard tag blinds, small blind folds and big blind calls.

K72

I bet 80% pot, he calls.

2

Ok my range looks kinda like this but not every hand is in there 100%: 22, KK, 77, K2s, A2s, A2o, Q2s, AA, K7s, AKs, AKo, KQs-K8s, K6s-K3s, KQo-K8o, QQ-88, A7ss-87ss, 76ss, 75ss, A7s, A7o, Q7s, J7s, T7s as well as bluffs: AQss-A8ss, A6ss-A3ss, QJss-Q8ss, Q6ss-Q3ss, JTss-J8ss, T8ss, T9ss, 98ss, 86ss, 65ss, 54ss, QJdd-Q8dd, JTdd-J8dd, T9dd, T8dd, 98dd, 86dd, 9s8o, Ts8o, 9o8s, To8s.

When the 2c falls, I'm checking back with some weak value hands and most of my weaker bluffs depending on the strength of my draw. The worse my draw is, the less likely I am to bluff the turn. The stronger my draw is, the more likely I am to bluff the turn. I think this gives me a good mix of hands and options no matter what happens. Of course, I'm not a random number generator so I don't get it perfect, but I think that's part of the fun.

I don't think this is a safe assumption. The only time your opponent's range should be 100% capped is after he or she calls the river.

Why can't you bluff both pure bluffs and flush draws? I think you can bluff both at frequencies <100% vs good players. Vs bad players that call too much I think you should eliminate the pure bluffs from your range. This may seem exploitable, which you indirectly state here:

However, since our opponent is bad, this is not a concern. Only vs good players do I think it's both necessary and profitable to mix in low frequency pure bluffs such as the 8d6d in the example I provided. The vast majority of the time, I'm giving up with that hand on the turn and am hoping to hit a pair or bluff the river, but I'll occasionally bluff the turn with it for the reasons you mentioned.