VTA adjustment for an RB600

I usually start with the bottom of the cartridge parallel to the record and go from there
Alan

I've read that most guys start from zero and adjust vta by ear. If I like the sound with the pivot end slightly lower than the cartridge, as long as there is sufficient clearance between cartridge and record, is this a problem? ( ie excessive wear on the bearings?) I have read that some prefer such a setting.

Not a problem!

You've got to start somewhere; therefore, a neutral position (parallel) is a good starting reference.