No, and it wasn't necessary. Casual pace on the MUP, and it was clear they were OK with me riding along. The group passed another commuter later and he joined in for a bit. At any point they could have dropped me or I them.

Re: agarose2000's post...don't be mad at others because you don't want a good workout, wear cotton, and/or can't bother wiping down when you change at work. Me, I'd rather use my 1+ hours to/from work everyday to improve my conditioning. Spare us the remark that commuting distances aren't a good workout...all one has to do is take the scenic route home, and there's something to be said for hitting inclines and headwinds with an extra 20 lbs in tow. Personally, I'll be getting dropped on the weekend club rides in the very near future.

Also, based on your attitude, we can only assume you've got the engine to really use that Dura-Ace of yours.