Seems that the fly heated gloves look about as bulky as my Cortech Scarab winter gloves. They keep me warm just fine, but lack the dexterity I crave, just like every winter glove I've used. I installed "Heat Demonz", under grip, grid style grip heaters, after reading all the good reviews. Installed and wired them in to a switched power source, with a custom made switch bracket so everything looks OEM. Other than the fact that they are warm, when I take my gloves off after the ride and touch the grips, I wouldn't even know they existed on my bike. Looking at Barkbuster Storm hand guards after a friend at work who had the same result with factory heated grips for his MT10 (FZ10) added the handguards and said it made a big difference in being able to keep his hands warm and to feel the heat from the heaters...