Back in the Golden Age of American archery, the 1960s and 70s, target archery, especially indoor leagues at 20 yards, was once the fastest growing sport in the country. Then the compound bow was invented and everything went to hell. But never mind that.
The most popular draw weight was 33 pounds. You can find lots of lovely old bows on the auction site of 33 pounds. I must have owned a dozen of them at various times. 33 to 35 with light arrows will get it done at all target distances out to 100 yards. 30 might not quite.
These bows are a delight to shoot and you can shoot hundreds of arrows a week with them, the key to getting really good at this oldest of all sports. Come deer season those archers moved up to a 'heavy' bow, maybe 45 pounds.
It worked then and it works now. I believe few men can achieve top form and scores with heavier bows. The Olympians, who don't have to work for a living, can maintain thier skill with somewhat heavier bows, but most of us cannot train enough hours and arrows in a year to do so.
So yes, I believe a bow drawing in the 30s, depending upon your strength and draw length is best for developing your form and skill.
Myself, I move up to the low forties for competition season, and around 50 in hunting season. But 50 is more than I need unless I win the lottery and can go to Africa or Alaska. - lbg