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I'm not entirely sure what you mean. As in tricky to clip in and out? Or as in it feels like the float itself is being resisted by the pedals? I have SPDs on my other bike and prefer the X Track, they feel a lot smoother generally. It's probably not a fair comparison though because the SPD are entry level and second hand (the X Track are secondhand as well but in better shape).
Edit: if you're curious I can lend you my pair for a week or two to see how you get on with them!
The float feels great, really good for my gammy knee. The longevity remains to be seen!