I have a Limited and love the additional top case storage. Use it very ride. Not sure a full face helmet fits in the side cases. I was hesitating as well when I bought mine and what convinced me is the resale value of mods. If you build up your T to be an L, you won't recoup your money ans people who want an L buy an L not a modified T. Unless of course there is a cost advantage, in which case you are the one financing the cost advantage for the new buyer.