I've been having issues with my crank bolts frequently coming loose with my Dura Ace FC-7600 square taper cranks. I was told its because I've been using a Shimano UN-55 bottom bracket. That's a 2 degree bottom bracket on a fine taper Dura Ace crank. I was told to either go with the Dura Ace bottom bracket made for these cranks or a Phil. I bought a Phil and had it installed today, hoping that will solve the problem.

Looking online, I'm reading that riding loose square taper cranks just once, will wear down the square taper and ruin the crank arms, regardless as to WHY they are coming loose in the first place. FML.

Gonna take the crank arms off tomorrow while the loctite on this Phil bb dries.

So just to get this straight, if the taper is rounded AT ALL, toss em' in the garbage?

Seeing that I'd want another set of FC-7600's and I will be waiting for 2-3 weeks for them to arrive from Japan, am I going to ruin the taper on the Phil if I ride the rounded out cranks in the meantime?

I hate bikes.