HEY!!! GLENN!!!! OVER HERE!!!!!
CONTRARY to what others are saying here, I have kept my rear shocks at the stock length(though its now shod with VASTLY superior units back there than those crappy things that Triumph loosely calls "shocks"...they're now Progressive 412s back there that actually HAVE some decent REBOUND damping, a VERY important characteristic in regards to keep "rear end wallowing" at a minimum...but I digress), AND I have slipped my triple-clamps(some folks call 'em "triple-trees", ya know) down about 3/4 of an inch on the forks, AND I've noticed a SLIGHT quickening in steering response from my BA since I've done that, due to the SLIGHT change in the rake/trail.
AND, I've noticed NO ill-effects since I've done this about 3 years ago.
BUT, of course in your question here you do not mention HOW MUCH you'd like to "lower the front end". If it was me, I don't think I'd go more than a full inch lower with those triple-clamps, because the lower you go up front, the more the forward mounted pegs will scrape the tarmac whenever you ride "spiritedly" over the twisties.
(...just like the more you'll tend to scrape your mufflers the lower you drop the rear end of your bike in any attempt to make your bike "look cooler")
