Now let's make the board drawier still, but still rainbow.
First, one thing about most of these drawy boards is that you're looking at mid-range cards, and hence sets less frequently than on high-card boards. Hence, if you get a bettor and a caller on something like K76r, there's a very good chance you're looking at 2 draws, which probably also block one another. In fact, I think it's almost always the case. As a result, I think raising is just better in principle if the board offers 13 outs or more. You're likely to get a call, and they're not only pretty far behind but they're often further behind than they think they are.
And, if you get lucky enough to flop top set with something like 99, and the board isn't already straighted (like 982r), you may get great action from a smaller set, who is much more inclined to put you on a draw with your raise.
So, I'm thinking with 13 outs or more possible, just go ahead and repop with top set.
I also forgot to get back to the "blank turns" issue in the previous post with the AK8 board. There really isn't such a thing as a blank turn imo if you look more closely at it. If it's 5-9, now all of a sudden a BUNCH of rivers look bad for you due to the middle straight, and very low cards make a wheelish draw. Admittedly, it's quite unlikely that anyone is going to make the "new" straight draw, but specifically, the side-cards for KK are random, so if they just happen to fit right in there, I personally am going to call a pot-sized bet into the implausible straight, hence offering quite good implied odds. As a result, I think it's better just to avoid all of this stuff and shut down the action on the turn--with the one exception that you pick up as much as open-ender to the new draw (or pick up a reasonably high flush draw). Now all of a sudden you're getting some sweet implied odds out of KK if you make one of those. If your hand is THAT strong, I think calling even on the turn starts to seem attractive.