Hi Cheryl!! The big boss here at Patty's Pony Place - congrats on getting a mini!! We developed the shaft system for sleds WAY BACK in 2014 - and since then, and using our basic idea, there have indeed been other systems come along. I also created a skijoring "dynasty", with my skijoring harness and shaft set-up. You can go to both my website - pattysponyplace.com - and to my PPP FB page to see ALL that we have developed for having fun with your miniature horse!! Regarding boots - we have never used boots - either winter or summer. Boots on ice will give your horse traction of course, but that does zero for stabilizing the sled on ice, and skijoring on ice...well, likely not!! So in the winter - we drive when the conditions are right - no boots required when that is the case.
Thank you, Patty! Have been checking out your site and seeing the superb systems you have developed.
We love our girl even though she can be sassy at times - LOL. In harness, she is very good. Our first couple tries with her were a bit nervewracking as I did not expect her to whoa and step back 3 quick steps. And then she reared slightly. So went to ground driving to figure that out...watched more videos and now we seem to be good.