I found a Kodak data sheet (http://www.kodak.com/global/en/profe...bs/j24/j24.pdf) that suggests 5 minutes in dilution B for Verichrome Pan (in a small tank with 30-second agitation intervals, at 20 C). I'm not sure what the "see-saw method" is, but it sounds like it might more closely resemble large-tank development (for which the sheet gives slightly longer times). Interestingly, 8 minutes at 18 C is exactly the data sheet's large-tank recommendation.

I've only done Verichrome Pan once; I used dilution E for 8 minutes at a slightly warm room temperature (I don't remember where I got the time from). The roll seemed underdeveloped; it didn't have a fog problem, and there were no areas of really good density. If I were doing it again, I'd shoot for more development than that; perhaps the same time with dilution B.