RE: old bow to low of poundage?
you might want to put it on ebay and use that money to buy a used one.
or you could learn some true respect for the world of hunting and try useing that bow. i killed my first deer with a 45 pound bow that was slower then hell. pasted up tons of shots around 15-20 yards waiting for something in the 10 yard range, had a 140-160 class 12 point 20 yards away but wouldn't come closer. then i finally took a real nice 6 point after 2 years of bow hunting. last year i finally saved up enough and got a new hoyt and boy what a difference! man if i had this thing it bothers me to think of how many deer i could have gotten. but if i had to do it all again i would do it the same way, it was worth it. not only did it make me a better hunter but it also allowed me to see lots of neat stuff that i might never have.
they have leaches to but on your string that add some speed "like 2 fps per one"
lighter arrows
85 gr cut on contact broadheads
find a range you can hit where you want every time and still have good speed
the less noise your bow makes the less you will worry about speed.
hunt from a tree stand
use sents and calls
SCOUT
be patent and have fun