Been commuting, and training for the most part on my fixed gear. Did the Houston to Austin MS150 last weekend on my geared roadbike. No problems remembering to use handbrakes. Of course riding amongst 12,999 other riders, not wanting to wreck,and the want to finish were my inspiration. It started shifting like crap, and I wished I had my fixed. No surprise I rode through most of it in the same gear ratio I have on my fixed.
Now that its all over, the geared will be collecting dust. Its back to commuting and such on my fixed, and weekend trail rides on my SS MTB.