I need some opinions from you resident Laser experts. I have a CLD-99 that I bought new about 3 years ago. It has very little use as it was in storage for 2 years after I bought it and I mostly have watched DVD's in the last year. I just bought a CLD-97 that doesn't have the AC-3 modification done on it. Where can I find an RF kit for this unit? Also, will I see an improvement with the CLD-97 over the 99? My display is an Elite PRO-610HD so the comb filter in it should be as good as the CLD-99's I would think. Or am I wasting my time switching to the 97 and spending the time and money to install the AC-3 Mod? Any opinions or suggestion would be most helpful.