I have an Elite 510 and a Sony 9000es. I've been toying with the idea of trying the RP 91 because of it's ability to avoid the dreaded "lock in full" mode. Before I do I was wondering if the RP 91 has the ability to allow you to adjust sharpness like the 9000es? Also, with a progressive 4x3 signal I now get black sidebars, not gray. The 9000es does this because it has a 4x3 or 16x9 progressive output. What will I get with the RP 91? The gray bars the set gives you internally are a real pain and I don't want to give up this ability to overcome it.