Ok, maybe I'm doing something wrong, but I've started testing engines rcently and skipper fails... Ok, maybe the weight is a variable I'm not condsidering, but skipper achieves 50km and 940m/s Launched straight up from the launch pad, compared to LV 30 which achieves 1850km with the same amount of fuel... Even when launched from 10km instead of the launch pad, it fails to match the LV30 launched from KSC... So, what am I doing wrong? Why use skipper, instead of e.g. three LV 30's?