Primitive Archer

I'm working on a new piece of Rocky Mountain maple, hoping to get a hunting weight out of this one.  I hear maple does well with a good belly heat treat.  I have a couple questions, though.
1.  I've read a couple places that heat treating maple can make it too brittle.  True, or should I go for it?
2.  There's a pretty serious kink on one limb that I'm going to have to straighten before I can start tillering.  If I steam the kink out, then heat treat, will the heat just put the kink back?  I'm a little scared to try straightening it with just dry heat.

Well, we're going to have to see some pictures!  I'll be interested to hear how it shoots.  A lot of the Native American bow designs in the TBB are similar--wide limbs and not a lot of taper to the tips.  Honestly some of them look like they'd be just awful to shoot...but the Natives seem to have done OK with them, so there must be something good in the design.  If not smooth and easy shooting, durability maybe?  Maybe we'll be surprised and it will be smooth as butter and fast as greased lightning.  If not, you learned something and that's never a waste of time.  Looking forward to hearing about it.

87.3 ntn  1" wide 
I estimated some values for a thickness taper that produces equal stress for as far out along the limb as I could.  you cant take equal stress all the way out to the tip.  The resulting bend profile or shape plot is as expected for equal stress.  Stress and strain go hand in hand.

Virtualbow is just a visualizer.  The program does not calculate any limb dimensions for you.
It does predict stress and bend radiuses for whatever you input as widths and thicknesses, and will calculate the draweight once you supply a MOE for stiffness. and
It is up to the user to watch that the stresses do go too high and cause unwanted set,  and the user will need to make allowances for any limb crossections other than rectangular.

woodbears spreadsheet works differently as you need to plug in estimates of the materiel stiffness and set a factor for limb crossection (round to retangular), a strain factor to hopefully prevent set,  and an elasicity factor if you are working with a highly or lowly elastic wood, and some values for relative stress should you want stiff tips or a stiffer handle rather than a circular bendy handled bow.

Next you try various thickness tapers, and the spreadsheet will calculate the approiate widths to suit your givens. If you plug an impratical design into the spreadsheet it will simply show you that you are asking too much of the wood by outputting 6"wide limbs sections or some such.

Ok 🤠🤠🤠it would look like a yummy bow. Never mind.

Its my opinion that if this hypothetical skinny long bow were to be built, it would be tillered so that the strain is even across the whole bow. If the program can tell you what tiller would look like with even stress, choose that tiller, and the draw length, then the thickness should sort itself out?