I am looking to experience MSL Cart's and at some point a Mutech Hayabusa.
I have seen a report from a very experienced individual, who has the experience of using TOTR Cart's from many Brands.
There is an assessment offered that suggests the Hayabusa offers a extremely close comparison the MSL, without needing to extend to the monies required to buy the MSL Cart's.
It might be worth your while to have a look to see if the Hayabusa can create has a attraction for meeting your needs.