300 rpm motor for VPI


I just switched from a 600 RPM motor to 300 and it seems like the sound is not as balanced.  sounds louder in right channel than left.  Is it just a run in issue?
tzh21y
I am not sure how changing a motor would cause channel imbalance.  The platter is still running at 33.33 rpm.  Did you by chance bump the tonearm and/or cartridge during the motor set up?
Check the run-out on the 300pm motor pulley.  The pulley that came with my 300 RPM upgrade wobbled.  VPI replaced it. 
It seems like I saw some bass.  hearing more of my sub.  Maybe its run in issues