Dude, if you're not comfortable going all-in on a set you'll get run over. A better set (particuarly on the flop) is extremely rare and worst case you have a bunch of outs to hit your boat. It's not a matter of if I want to put all my chips in the center of the table, it's just a matter of how they're going to get there.

I've played thousands of hands of NL/PL hold'em and only laid down a set once (4 flush on the river with multiple players seeing the flop, it was a good laydown), and maybe a couple more times I made crying calls with them.