Here's a guy who will rewrap your stator for 25% higher output. Maybe you could wear gloves, vest and pants
http://www.ricksmotorsportelectrics....yabusa_Kit.pdf
Don't know if he does Triumph but I sure he could if enough people sign up.
On my Guzzi I put in a switch to just run the parking lights during the day. If you switch one of the low lights on the Sprint you would have an extra 55 watts and still be legal