Frank,
Aye.. you said it yourself. ADVERTISED speed. I don't know about you, but I have never shot a Havoc that hit IBO speeds, redline, C-cam or otherwise (at least at AMO 30" length).
And if the BK2 would be to your liking why not a Pro 38 (same 37.25" axle to axle), G-3 (Again 37.25'), or specifically the 2002 Extreme Solo option 2 (35 1/2", 7" brace, draws to 31"

?
Basically the Extreme Solo option 2 fits your specifications, and w/ your 31" draw, you would be in the high 3 teens to 320 FPS range. It's lighter than a Pro-series riser as well.
Now snake out of that one!
We WILL make you a convert!
JeffB