No experience whatsoever. I drove my 19.5" Continentals on my 450 to 78k with one flat--at that point, there was little tread grooving left. But they were 'regroovable' on the sidewall. One, did not know where to take them for the process; 2) would not trust them after the regrooving to resist flats as much since the tread HAD to be close to a half inch thinner.
I have not read of anyone having this done, and my Michelin 17.5s after 5 seasons pulling still look new.
I also would think the dismount/remount and wait time on the process would negate any potential savings on regrooving. Any idea how long the process takes? I don't.
If you have it done, please let us know how it turned out.
2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired