Well I thought it would be like learning to ride a bike..... you never forget. Unfortunately I did after having a few weeks break, using fixed head razors. However, it only took two uses to get back on the seat and shake those stabilisers off. Rode the pivot and sorted my angles, so to provide another excellent shave. Really enjoying the one blade. I'm getting 4-5 uses out of a Feather blade. They do become increasingly 'tuggy' post 3rd use, but a thinner and slick lather allow for prolonged use of the blade, without causing much irritation. Been pondering the core, but have no reason given the build quality and life time guarantee attached to the original. Or am I missing something?