Yo Scrod, I need bike mechanic advice.

I just recently swapped my dura-ace cranks to a new bike. Cranked down the bolts, it developed play in the NDS crank arm. I kept trying to crank the bolt down, no matter how tight it was the arm still moved. I eventually figured out that it was the drive side arm being loose that caused the play. After tightening it every 4 or so miles the drive side would loosen up. Today I finally applied some blue lock-tite but I'm wondering if this is a specific problem IE, BB, Crank bolts, damaged arms that I could resolve to ensure this wont happen again