i have commercially mowed lawns for 7-8 yrs took a five break to pursue another career but missed mowing lawns. The company i worked for was the largest in my area (at least 60 employees 20 crews) everyone that was behind a walkbehind walked...thier walkbehind. when i left i was quality control super, before that i did all the upper class big lawns with mostly a rider, trust me i can operate a w/b just fine(same principles generaly speaking) but i have never used a sulky, velky or a proslide(it just didnt happen at the company i worked for). my question is now that im on my own is; do they bolt up to any walkbehind(i have a 36" g.d i want it for), what stripes the best for those who have use atleast 2, whats the learning curve on each i.e. is there one thats easier to learn than another. im not a newbie when it comes to mowing just never got a chance to try one even though it seem like every other company(except for the one i used to work for)uses them.