Unless you only mow between the hours of 11am to 1 pm you will find a sombreo works a lot better than any fixed sun shade.
By law the civic authorities down here must provide sun protection and for a while lots of very expensive sun shade were fitted but eventually they all went down the broad brimmed hat and light vented garden glove routes.
Even on the ZTR with ROP's to fit them to most sun shades dissappear very quickly as to be effective they need to be 2' to 4' in front & behind the driver and a similar length left right.
Next time you are near ( on on ) a golf course look at the sun shades on them and how little sun protection they offer the golfers and the golfers are not going back & forth and around in circles quickly ( unless I am one of the golfers ).
Thanks for the idea, it is appreciated, but usually a good portion of my mowing normally might be somewhere between about 11am and 3pm :smile:
The umbrella I plan on using is a good size (68 inches wide) and offers UV protection also.
https://www.amazon.com/gp/product/B0032DUNR2/