I too have an Mten3 as my first wheel. On my recent group ride with Marty to the beach, I told him I have never ridden any other wheel before, so he let me try his MSP.. the weight was overwhelming to me, I tried 2 times to ride it, both times I fell. I would love to get a sherman too, in my opinion I think I will need to start from the beginning, learning to ride a bigger EUC, I felt like my legs and body need to get used to the weight to learn how to balance. I just do not know how long it will take. I am sure everybody's learning curve is different, it might take you just 2 hours or 2 days.