Well... lets say that your bike is dialed in at sea level. When your off-road, in some nasty single track, luggin' 'er down to a snooge above idle to get thru some basketball size rocks, then given 'er a yank and a crank to clear a log, or dead body... what ever, and the throttle response is as it should be... perfectly BST bitchin'. Now, lets say you go to BC for Loadedpalooza V3.0 and your at 5K feet. Same kind of terrain, but with bears and vermouth... wouldn't it be nice to just take 10 seconds to turn the screw in a half a turn or so, while the bike is hot and running, and hear the idle speed clean up and get all crisp and BST bitchin' again... so when the bears with vermouth come after you... you can squirt off with all the responsiveness that the razor sharp BST is capable of? Yes... yes it would.