I've looked around and found a lot of good advice on rucking here but I need some additional information. I'm a Marine reservist scheduled to go to MARSOC A&S this summer/fall. I feel like I'm mostly ready but one area I'm continuing to struggle with is Rucking. I can ruck forever, but I'm slower than I want to be. I'm also short... a little over five feet... that probably has something to do with it. I can pull off a 15:30 mile without much trouble. My goal pace is 14 min per mile. I read somewhere that the average hike time for the 12 mile at A&S was two hours fifty minutes and my goal pace would put me close to that. I don't want to score just average on the hike but 14 min per mile is realistic for now. I've tried a few things to improve my ruck times but I haven't found a solution yet. I currently do 1, 3, and 10 mile rucks weekly with a 50lbs pack. I'd appreciate any advice, especially from any operator that is close to my height.