Best Maggie Tweaks/upgrades

I have a pair of 3.6R's driven by Bryston monoblocs and all is well, but it's time to tweak. I've already ordered some Mye stands, and now I want to hear from happy owners about their tweaks and upgrades. I know that there are some of you who have messed around with the crossovers and the wiring, but I can't seem to track down those threads. Also, I don't recall anyone describing costs and necessary tools/expertise. I'd prefer tweaks that a non-techie can safely do.

Thanks much.