Thanks to a recent tornado, I have recently been using my L3301 in the sun. Bought a Westendorf quick attach canopy in matching orange. Really good quality and sure made a difference working in the sun. Because of the quick attach feature, canopy was a little high. In an effort to lower it, I removed 6 1/4" from the upper ROP's bar sides. Was extremely careful in the welding procedure, using a internal joining brace as well. WARNING: This is not recommended--do so at your own risk, and be assured in your procedure and welding ability before attempting this. I also really liked the RinoHide canopy, but it was quite a bit smaller in size, especially for the larger tractor.
I liked the canopy concept so much, my neighbor and I went in together & bought two RinoHide tops for our Kubota ZD series mowers. It is also very well made, with multiple mounting variations. Buy two, and they will ship in same box & only pay for one shipping charge ($50).
If you work in the sun, you need a canopy--one of the best accessories I ever bought for a tractor/mower.