After reading so many stories here about the heads breaking off (even with pilot holes and wax), I've been avoiding installing the set screws on my first parts build. For play testing it so far i just hand tightened the nut for each tuner, and it stays in tune, but the tuners are a bit crooked. So it's time to install them properly. I've read here that it's best to upgrade the screws, I think someone even suggested to go to a wider diameter. Should I bump up the size from 2mm (#2) to 2.5mm (#3 ) just to give them a bit more strength and lower the chance of breakage? The holes in the tuners seem to be 3mm, so I think that 2.5mm would go through fine.