Does your sharpening shop just spin grind or does he reestablish the relief? Spin grind only will work if you are cutting bent grass at putting green heights and you have the money to constantly regrind, then replace reels. On the other hand, I do know of these mobile sharpening outfits that try to backlap reels that have no relief left. Lots of reel mowers out here.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738