Here goes.
Matrix 380
260 lbs. draw weight / 380 fps velocity = 0.68 something
Matrix 355
240 lbs. draw weight / 355 fps velocity = 0.68 something (huh, they match)
Ibex
175 lbs. draw weight / 305 fps velocity = 0.57 something
My Takeaway - The Ibex limbs don't store as much energy as the Matrix limbs. So, if I take the 0.68 from the Matrix limbs times the 305 fps velocity of the Ibex I should get a rough guess of a "Matrix Ibex" limb weight.
0.68 x 305 fps = 207 lbs. draw weight.
The current Ibex 175 lbs. draw weight would creep up to 207 lbs. at a shorter Power Stroke of unknown length. (Roughly 20% less draw weight of the Matrix 380 - I'm very interested in a Matrix Ibex with a non-camo, aluminum rail!)
Any folk who can fix my rough math above ... have at it please.
![Very Happy :D](./images/smilies/icon_biggrin.gif)
Note:
None of the above takes into account the Power Stroke measurements of:
13.12" - Matrix 380
12.25" - Matrix 355
14.50" - Ibex.