I think I may have posted a set on here - do a search. I don't play any basketball games except for 2K11. I'm not a big fan of today's NBA. Our oldest son is, and he plays 2K14 a lot (mostly his My Player file). We'll get him 2K15 as an early Christmas gift, but I don't plan on playing it or creating any sliders.
I have updated page 1 / post 1 for the 2K11 sliders here. It probably seems comical that I'm still updating it, but I'm still seeing stuff. The latest finding I made was having user blocking at 23 and cpu blocking at 78. I experimented with this at different numbers, and this really plays great. The common denominator is that it gives the cpu a 55 differential advantage.
I've also lowered user on ball defense to 25 - I'm now seeing the cpu point guards and wing players actually drive to the basket more - something I wasn't seeing in the past. I might even lower this to 20. I raised cpu on ball defense to 95. Not so easy to blow by the cpu - rewards guys with speed / quickness but not the others (who were still getting to the rim too easily).
I'm loving this game... Still a thing of beauty!