So basically i found a new strat on sandbox 2 where instead of grabbing the shotgun and using it to boost yourself, you grab the Goose Cannon instead and do an easy reverse split-s twist powerloop trippy spin maneuver to get maximum momentum in correspondance to your height and height lost per 100 meters. This will propel you to the milk about 1.47x faster than a shotgun could which saves about 3 and a half seconds according to my tests.