Good idea to pass on the Micro lock. They work fine for short stops,but they bleed down. At the paving co. where I worked as a kid,they had 2 old stovebolt dump trucks with those Micro locks on 'em. About once or twice a month a driver'd forget they bleed down and leave his truck parked with it set;next morning the boss'd have to either retrieve it from a gravel pile in the pit or drag it out of the river.(the two places in the yard a truck would coast to if released during the night. It wasn't all bad though-every time a driver made that mistake,he had to buy the end-of-shift beer for the whole crew each night for a week.
Speed
