It certainly is. I dont think I would get a 366 head though. It's not self-centering and doesn't look to be as "industrial" as the 376. Some of our panels, even replicas, can get quite heavy.
For the size circuit boards I do, the Standard Head with the 344 Grooved Nylon Jaws works pretty well.
http://panavise.com/index.html?pageID=1&page=full&--eqskudatarq=33
203 PV Jr. Head is also good, though the last PV Jr. I had, the two adjustment knobs on the end got locked up together and would not separate.
http://panavise.com/index.html?pageID=1&page=full&--eqskudatarq=24
Cheers,
Colin