But I don't care about what Jim at the laundry mat did last weekend, or which machine he thinks makes socks dry faster.

tough. :) here's what he (might have) said: it's the 2nd and 3rd dryers from the left. the smaller ones. you also need to use the smaller 'double load' front-loading washers. those have an extra extract cycle and get the most water out. the dryers used to literally only cost 25c to dry most loads (an extra quarter for all denim or something), but they (new owners of the laundry) increased the minimum needed per-load to $1.50 (on top of more than doubling the washers' prices). greedy bastards.