Is there any reason that blades slip/slide besides them needing a sharpening? I just got mine sharpened, but today, my left outside edge slipped a few times. I would be going forward normally on a left outside edge, and my foot just slid out as if it couldn't grab the ice. I tried doing T-stops with the LO edge and if feels very weird, like not much friction. Granted, that might just be because I usually do T-stops with the other foot so it might not have been done properly.
I want to blame it on a bad sharpening, but I had skated an hour between the sharpening and today, and I didn't notice anything last time. I wonder if I might have done something to the blades, or if it's just my skating skills. I feel like I have problems every time my skates get sharpened (well the past two times)... maybe it's just me and not the blades.