Yes, a little easier moving the ST1300 around the garage, a little easier with a castor wheel upgrade - going from 50mm diameter to 75mm diameter. At $55 for the upgrade, it makes the $150 for the motorcycle dolly look positively cheap.
Is that something you've tried, Michael?
I'm thinkin' with the larger castors that would actually make it slightly harder to run the bike up onto it.
Also, I can see another potential issue...the lever at each end lifts the castors slightly off the ground so when you run the bike up onto it the dolly doesn't move forward...with the increased wheel size I suspect that will now not work...
Thanks for the suggestion though!