..Only because this is a thread about 'accuracy'
Indeed, the 'gen 1' mags in the 4k's were nickel-coated, and, yes, in-time many 'delaminated' and gummed-up inside.. we've replaced (for Clients and ourselves ..) some oh, 10-12 sets..
However, since they migrated to the *teflon* (iirc) coated mags, we haven't had *one* complaint or failure in 5-6 yrs, in about 29-ish galvos out there (..some are XYB-heads..) so.. Just so that little point is clarified.
Lookin forward to giving the 'Pangvos' a good thrashing, someday.
Your favorite PITA,
j