Here is a maple d bow backed with linen canvas. It started it's life at 72" tip to tip under weight at 42#. I piked it down to 68" and picked up the weight to 50#. The tiller shifted and the bottom limb became softer than the top. I then cut an inch off the bottom limb to get the tiller back. It started following the string badly to the tune of 3" and it shot kind of sluggishly. I had nothing to loose so I used dry heat and flipped the tips and did a moderate heat treatment to them, the linen canvas stayed put. Got the weight up to #58 and it shoots hard and flat after about seventy arrows.I sure hope this bow is done finally. Four times is the charm.