100lbs is pretty light for a warbow, it's sort of "baby warbow" territory... Getting yourself into a 100lb bow should be relatively straight forward, as it's almost do-able using a normal target style draw.
The following is just my opinion.
The statement :-
Getting yourself into a 100lb bow should be relatively straight forward, as it's almost do-able using a normal target style draw.Is IMO down right dangerous and a contradiction in terms, as a 'normal target style draw' won't get you much past 28"
I've recently just managed 100# and correct technique is a huge help.
I have a relatively good natural strength and fitness but I am approaching 62 years old.
There is no way a normal person will pull 100# to 32" using a conventional target draw, they are likely to just hurt themself.
If you can draw say 70#and are reasonably fit then I'd suggest a month of training and practice with the right technique you will manage to get 100# to your full draw.
If you have the right bow.
I had the misfortune to try a horrid bow with pinched knots up the belly which has no early weight and then stacks like hitting a brick wall and kicks your left elbow like a mule (not made by me). By contrast my Elm warbow is relatively well tempered, although I can still ony shoot half a dozen.
I also had the benefit of some guidance from someone who draws 100# without breaking sweat.
I'd suggest a bow drawing say 80#- 90# at 32" would be good for honing technique. It's important to know you
can draw the bow so that you can then examine what you are actually doing and observe the effect of various different factors.
As I said ... just my opinion.
Del