We led a 19 mile ride tonight. It's a show and go series, listed as intermediate level (av. 14-16)... 4 guys show up. One can keep up with DH, one has a road bike with 32 tires that are rubbing and doing other bad things, one is his first ride of the year (he's in chinos, t shirt, sneakers, creaky touring bike), and one is Ok, rides about my speed, but is having issues unclipping and falls back on hills. Oh, the fun. We made it back just as the sun was going down, but I was not happy. Two of those guys did not belong on this ride and one should not have come with a broken bike!
We had planned a GPS route, but the traffic was so bad on the first street when we drove to the start, we bagged it (none of them had GPS) and made it up in the parking lot.
We are doing 3 more of these this summer, so hope the people self select more properly.