You will be able to stirng it with the push/pull method.
Tight long string on all bows in my opinion.
You can clamp the handle in the vice and pull the limbs end to check floortiller/vicetiller

The trick is to get these sort of bows nice and 'limber' or close to final thickness before fighting them too much early on....but that takes experience to eyeball tapers/thickness etc...or luck.
Reflexed bows of any sort will feel heavier than they actually are once strung.