Thanks for a quick reply, and got my power curves fixed by this: Power Spike incorrectly clipping sprints . Set the clipping to 999%. Never seen a random spike on my power meters anyway. Or in other people’s data even.
FYI as the other guy said, FTP and sprint efforts are not related, but seeing 200-500% FTP for is normal. I’d actually turn it off by default if I was the developer to avoid confusion. 20% probably affects like… 100% of users 