Glad to help, Ryan.
If you're thinking of switching to Metzelers, I can thoroughly recommend these, which I've been running for the last 12 months or so.
They seem to warm up much quicker than the Pirellis and feel a lot more confidence-inspiring in less than ideal conditions, such as on cold roads. Very neutral feeling with more than enough grip for my purposes.
Of, course, Metzeler and Pirelli are both part of the same group and I believe the rubber compounds used in both tyres are the same. It's just the construction and tread pattern that differ.
And, for what it's worth, the Marzocchi service manual recommends 425cc of 7.5w oil with an air gap of 110mm.