Yep I've run them on carpet but never on bitumen. I used 40 shore front/ 35 rear. I'm pretty sure they were the 26mm sweeper models. Some people like speedminds and others don't. When I ran them I liked them but they required that I change my setup for them to work. If you want guaranteed traction 'no matter what' then stay with jaco, if you don't mind adjusting setup to get them to work then try speedminds(there cheaper too).
I prefer elligi foams, so does pretty much everyone else around my area, although I live in Australia and not sure if it is different in different countries. I have seen that we use 42 front 40 back cause you dont have to buy tyres as much.