Well, did the deed and got a set of Kreitler 3" rollers. Picked them up Friday, which came in handy this weekend, as we had 5" of snow & below freezing temperatures to contend with in normally temperate NC. 1 1/2 hrs ystd, and 2 hrs today. My observations so far:

1.Every imperfection in your pedal stroke becomes apparent, such as how you are applying power, left/ right imbalance, and other attributes. Not only does it affect your balance on the rollers, but you can feel it more easily than you might on the road. It makes you concentrate on your pedaling bio mechanics and balance. Hopefully, with practice, the muscle memory takes over and the amount of concentration while on them will diminish a bit.

2. Rollers will also cause you to focus on how you MOVE on the bike, that is, balance, forward and backward on the saddle, how smoothly you change hand position, reach for a bottle, etc. Once again, fast movements are amplified and quickly require your attention. Reached for a bottle for the first time today, and it spent a few minutes gripped in my teeth as I worked to stay upright before replacing it in the cage.

Where riding rollers will, I hope, generate benefits could be in overall bike handling skills, a more balanced pedal stroke and better muscle balance and usage while pedaling. Also feel like it will help while riding in close quarters in a pace line, group rides,and with descending skills. So far, so good...