Not a stupid question at all!
Is the bear Paw a 3 piece or one piece.If its a 3 piece I would assume its cut to center or past center like the morrison or widow.
I would assume the Morrison is faster than the Bear paw.Though I do not know that for sure.Iknow my cheyenne is a very fast bow and similar to the ILF in performance.If you have the carbon foam limbs its gonna be even faster.So it would need a stiffer arrow that the Bear Paw.Thus it shoots the lighter point well since that makes the arrow go through less parodox.
If the Bear Paw is cut out from center its gonna require a weaker spine as Tim stated to bend more to clear the sight window better without interferance.
I shoot heavier points or lighter spined shafts out of my one piece longbows that cut 1/8th of an out from center than I would from my bows of the same weight that are cut to center or past.
I think 3 variables may effect the fact that the same weight bow,drawn the same length,with the same length arrow and point may require a different spine.
The performance of the bow.How deep the sight window as cut and whether or not you are drawing the differnnt bows the same length of draw.Some grips increase draw by a tad and some may lengthen draw by a tad.
Also some risers and or grips may actually increase your power stroke by a bit depending on whether the riser is straight ,deflexed or backset.
brace height settings can effect performance of a bow as well and tuning as well as nock point height.
A few variables to think about thier.Food for thought anyway.