If you look at the Martin Tech area under 2011 specs it shows that the ATA for the Silencer is 32. I measured mine and it was 32 1/4. Once I got about 9 twists into the cables, I'm finally down to 32. The bow pretty quiet. As the shooter, it sounds a little loud, but my buddy shooting next to me noted that he thought it was very quiet. I haven't gotten a speed reading or weight of draw on it since changing the ATA, as last night I was building a draw board to make sure I didn't screw up the cam timing. Once I get a reading on these I'll get it posted. Very happy with the Silencer, but then I haven't shot the X.
Just as a starting reference, Measured speed was 285fps with 55#, 29" 380gr.
-2011 Martin Silencer 63# 29.5", Limbsaver prism elite .029 sight, Alpine Whisperflite drop away rest, Alpine 5 arrow quiver, G5 1/4" Meta Peep, Carbon Express 8" stabilizer, Gold Tip Warrior and Expedition Hunter (385gr), G5 Montec
-2011 Martin Silencer, 73# 29.5", Limbsaver prism elite .019 sight, QAD Ultra Rest Pro LD, Tight Spot 5 arrow quiver, 1/4" G5 Meta peep, Carbon Express 8" stabilizer, Gold Tip Expedition Hunter 7595 camo (441gr), G5 Montec BH.