I’ve got +1000 hours each on 2x P1S & 1x X1C with no cutter issues on any of them. Printing 90% PETG & the balance PLA, TPU & very small amount of PA-CF. While the PA-CF will cause the most wear, I’d expect a blunt cutter to have most problems with TPU, which I’m printing at the moment, but all is good. I’ll be doing a clean & lube on all Z axis leadscrews next week & think I’ll change cutters then, rather than wait for an issue.
holy heck. I have probably printed 100 rolls and never replaced the cutter 
I didn’t even know what that handle did till I found this group.
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