I understand about bearing off when overpowered, but I have tried over-trimming the main while downwind in heavy winds (excess of 35knot puffs) and it appeared that the boat wanted to bury the lee bow into the waves. When I let out the main to its full extent while on a dead run (+/- a few degrees), the windward bow began to submerge. I was a bit confused about this and am wondering if this is normal and/or practical?