[Shalimar]

Excellent recommendation on the MT Props. For me, however according to the MT website, they are only STC'd through the F model. The later G's and H's are not yet approved under the STC. Since I fly a P337H it doesn't work just yet.
In any case, for anyone doing a pre-buy on any 337, I would suggest checking the rear cowling, engine baffling, spinner and spinner bulkhead for vibration related fatigue cracking. The spinner bulkheads are costly to replace and hard to find. On my earlier 337 (s/n0028) I replaced the rear spinner bulkhead twice due to cracking, I used to joke that i burn 20 gph and get 400 hours per spinner bulkhead.