I have always been big on Flaherty, wanted to sign him last off season. He was looking like an future ace early in his career, had a stretch where his slider was on the very best pitches in baseball and was 4th in NL Cy Young voting at age 23. Always has had a nasty curveball as well.
Something happened to his slider effectiveness from 2020-2023 where it went from elite to average to downright bad last year, and his overall results followed just about the same path. No doubt some injuries factored in along the way but there may be an interesting case study into how trying to diversify his arsenal by introducing a cutter, may have actually managed to zap Flaherty's slider and fastball.
My point being, 2024 doesn't strike me as an random outlier from out of nowhere. This is the pitcher he was expected to become based on how he was tracking as a young SP. He got off track for three or four years after a pretty strong start to his career, bottomed out last season and now seems to have rediscovered what made him successful. I still don't think teams are going to be diving headfirst into giving him ace money, so there should be a chance at getting surplus value out of signing him (ie pay him #3 starter type money but he may keep pitching like a frontline guy).