In the past I was told that if I was planning on shooting 60 lbs that I should buy a bow rated 50-60 lb and NOT 60-70 lbs backed down to 60. Does this still hold true with the newer designed bows? I have always shot around the 65 to 70 lb range with round wheel bows. I am planning to buy a short bow and was wondering if I really need anything over 60 lbs. Have been looking at the Bowtech Pro 38 and the Hoyt Ultratec. Any input will be appreciated.