Can you do it?

How many twists can you put in a bowstring/cable to tune up your cam and to bring your peak weight back up to par before you've overtwisted it?

You can't over twist it. Back in one shop we use to precreep strings by using an electric drill to twist the strings as we served them...trust me, by hand you'll be more than fine.

Was wondering , because the proshop guy where i do business told my buddy he couldn't twist his string anymore to tune his cam up and increase his peak bow weight.. Its supposed to be 70lbs ands it dropped to 67 and limbs are maxed out.. So the guy is bullcrapping him then... sound like

You can't overtwist, you just want the length that is labeled to the bow, otherwise the tiller length is off.

i don't know who made it, but you can't make mathews cables to advertised lengths. they have to be made on avg 1/4" short - but on some bows a full inch short for the bow to reach poundage and specs. generally if you twist a cable too much the yoke will start twisting, and if it gets less than 4" from the axle its too much.