so i got to try out my 2nd FBV sharpening last night and the left skate was off. it didnt have much grip from mid blade to heel. balls of feet seemed ok. standing still on the ice, my left foot could slide out to the left without really putting any weight on it. so any fast, straight ahead starts were slippery to say the least. turns were ok but there was a huge difference from what i had before this sharpening. so i got by but i want to get it fixed. this is Total Hockey in Exton PA. since i am not an expert, i assume i should always have the levels checked? i didnt do that since the first cut was great. different guy this time tho. is there anything else to look for? will a skate stay vertical on a flat surface if the levels are right?