I think the 2nd to 3rd gear crunch is common under certain circumstances... both gearboxes I've had would do it. If I haven't driven the car for a few days, and it's below 60˚ outside, and I've only been driving for a few minutes, and I get the revs up above 4K RPM in second before shifting to third, I'll get a brief crunch. But unless all those conditions are met, no problem.