I've had my T21 for over 2 yrs and before that it used to belong to Smally. I believe it's a Cushman and it is in fact lighter than and easier to troop with than my E11.. I've trooped with it over an 8hr day and it's extremely sturdy but that may be due to the inside being "filled". I would need to investigate that but anyway, if mine is a Cushman then I can't recommend it enough. I've borrowed someone else's resin DLT19 and another's heavy wooden T21. No way I can troop with those. This thread is reminding me to purchase another ! LOL