It was both skates, not just the one. I get my skates done at National Sports - they've always done a great job. I read a bit through the thread, and think perhaps I'm just on the wrong hollow. I don't know exactly how to put this; when standing upright, almost on the flat on the blade, or a very steep angle, the blade simply washes out for me on this hollow. I know that you can't expect much grip unless you're getting some pressure on a shallower angle on the blade, but when changing direction/quick bodyweight shifts, I continually catch the blade at an angle where it literally feels like someone put a skateguard on my blade, and the skate slips out laterally from underneath me for a few inches, and then catches again. This didn't happen much during the summer, but it was starting last few skates, and now bigtime tonight. Perhaps its the enhanced "flat" on the FBV that results in so much glide that's contributing to my instability at these angles; at any rate, I'll experiment a bit, and I appreciate the advice.