I'd agree with him on both counts. And I'd add that a CS prop would be good when aerobatting (constantly pulling back what little power there is to avoid overspeeding the engine in aeros does nothing for conserving height).
But with those changes it wouldn't be a Chippy, wouldn't have the character. That's why I flew a Yak52 for a few years. Missed the Chippy, though, and returned eagerly to my first love when the Yak group folded.
Sold my share in January this year. I miss the aeroplane, but not the hassle (mostly security and getting fuel etc) at John Lennon (no blame to L'pool ATC though - they were always highly professional and helpful to Chippy pilots, slipping us in between the big ones
).