-> The only real reason to sync to zero cross is if you are using SCR or
-> Triac as the current switch.

Sorry to butt in here Gary...

The main reason to sync to the zero crossing is to minimize in-rush
current and its resulting EMI. Connecting the load to the mains while at
peak voltage results in a high dI/dT surge that many loads don't
appreciate. As well, EMI emanations will abound up into the MHZ region.
An inductive load just complicates this even further.

This is one of the reasons one can't (or shoudn't) use a dimmer switch
with an inductive load.

Regards, Dana Frank Raymond - Foxtrot Systems Ltd.
Internet: dana.raymond@canrem.com. Compuserve: 73362,3052