I know that when riding with a group, your average speed increases as a whole. I'm wondering at what point riding solo, you decide you can hang with a group. For example, if a B group has a posted average speed of 15 - 19mph, what would you feel comfortable averaging solo before you'd attempt this group? I know that there are certain skills required for group (tight group?) riding and the lower number is for earlier in the season vs. now. There would be some pacelining, I assume, and a little bit of friendly competition, particularly on "hills". Everything else being equal, including the route you know they ride... what are your thoughts? I hope I've phrased this question correctly. TIA!!