Hey guys has anybody used the 15 foot cable from monoprice thats 15 feet long. I have the one thats 6 foot and no problems. Reason is I have to put it behind dry wall and I dont feel like digging it out if theres a known transfer problem for that far of a run.

If you're going to go in-wall, why not spend a little extra and buy the HDMI 1.3a in-wall certified cable from them? You shouldn't have ANY issues with that cable. No sense in running a cable in-wall and finding out that you have to do it all over again.