For a more authentic warbow style you need to be drawing it further, more to the ear.
Generally warbow drawlengths are 30 inch or more (but it depends how tall you are.
But please don't risk overdrawing it on my say so.... (having just smashed my last bow)
I don't know if Hickory would take it.. I think it only really Yew or laminated bows which will make a real high weight warbow.
(I'm sure someone will chip in a set me straight if, talking out my backside)
Del