Been playing the SMT Avocets for years now (replaced 4+5 irons)
have them shafted with old school Harrison Impulse Hybrid shafts
Also have DTG Grand HawkXL 30* (replaced my 6 iron) shafted with steel
Nothing fancy but cheap and gets the job done.
Recently bought Adams XTD TI 23+26 degree fore shits and giggles.
Have some old school Irod Hybrid shafts for those
I tried hybrids 15 years ago (Snake Eyes Quick Strikes, Ashton X-Brids, Alpha RX) but found those to be hook machines so gave up on those. Not sure if newer OEM ones have the same issues.