I personally don't think it very safe or seamanlike to depend on clamping to the ladder to stabilize a weakened pulpit rail. They are there to keep you from falling overboard of course, but if you do go over, I leave my ladder loosely secured so that I at least have a chance of lowering it from the water, rather than drowning. This happens more often than you might think. I've read about a lot of sailors falling overboard at dockside, & have no way to get out of the water. Most older sailors like us cannot get back on the boat, without the ladder being accessible. If its clamped down on both sides you have no chance. I always stress safetly over convenience. Perhaps some access steps installed at dockside would be a better alternative then weakening the pulpit rails. One of those cushy new raised helms seats would accomplish the same idea of an extra step from the cockpit side.