Just checked out your album pics. That is a very nice looking rig. Personally I like the looks of the Silencer riser better than the Firecat - don't find the cat claw look as appealing as what the Silencer has. I know - each to their own preference but I just like what I consider cleaner lines in the Silencer.
Also, based on my 08 Firecat's performance, I believe you're bow is pretty close to how mine shoots, speed wise. Your bow and mine have pretty much the same specs (ATA, brace height, speed, etc) so to me you look to be getting good performance. From what I saw of the cable position of your cables relative to the modules at full draw it appears you have the timing set well too. It will be interesting to find out what your actual DW is once you have your scale.
When I shot 390 grain Maxima 350s I was getting very repeatable 290 fps with 29" DL and 63# DW. I now shoot these same Maxima 350 but with more weight up front for increased mass and higher FOC and get 280 fps with 452 grains and 250 fps when shooting my Gold Tip Big Game 100+ weighing 560 grains. As you'll note, there wasn't a lot of speed loss with heavier arrows but there is a notable increase in momentum gained that provides more penetration potential (presuming this is a hunting bow). The reason is there's a more efficient transfer of energy from the bow to the arrow when you're shooting heavier that minimum weight arrows. You'll also get a quieter shot from heavier arrows. Just thought I'd pass that along in case you weren't aware.