What are you running for a mill? Does is raise under power or is it cranked? It is tricky to get the feed and lift/drop feeding at just the right times. Cutting down into the curve is easier due to the back of the band resting on the kerf but raising out of the cut can be tricky because the teeth are leading the cut and it just want to cut straighish so the blade gets put into more stress. I try to position the log so most of the cut is a drop and the last is nearer straight/level. I do this by raising the end at which the saw enters which us always the big butt end. They can be left with the band sawn look or a slight hewing job to clean the sweep up.