The cr10 X axis is badly designed so I've added a couple of idlers to correct the belt path. Now that you mention it no I haven't adjusted the bed while it's warm. Good point. I noticed my wheels are grooved also so should be replaced. Cooling for the drivers may also be an issue. I've looking suspected my X stepper is faulty too. Sigh.
The input shaper feature seems to work really well for ghosting but then it can also round small corners. It's all a very fine balance