I kno this is a horrible newb question but i'd like to know. To increase the poundage of a bow (yes i already have it cranked down) do you order new limbs or cables. Any idea what it'll cost on mathews feather-max. I want to move up to 70#
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You would have to order new limbs. I'm not sure what it would cost. If you go to a Mathews dealer, you could find out there. I'm pretty sure they require that a certified dealer do the replacement work for the bow to remain under warranty.
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I don't know off hand, but I'd say the limbs will probably cost you between $150 and $200 and whatever labor charge the shop has for the required work. Your cable/string/cam will remain the same.
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Years ago, I attended a 3D tournament and a Hoyt factory rep. was there. I was shooting a provantage with recurve style limbs at the time. Originally the bow was adjustable between 60 and 80 lbs. I had the bow on the scale and it would not go to 80 lbs fully cranked. I asked the rep. how I could get 80, and he just gave my higher "limb blocks". These act as a fulcrum, and were loacted behind the adjustment bolt. Basically it allowed greater adjustment range and more stress to be put on the limbs. When fully cranked it was at 92 lbs. I shot it at 90 for about a year, no problems.
I have no idea if a similar thig can be done with your bow, but it may be worth looking into.
There is another way to increase draw weight, and that is to intall a longer string. Of course that means a longer draw length. That may or may not work for you.