The same weird meko physics made my B also need the extra move at the start to prevent floating. My gameplay was very similar. Not sure if i have encountered an upside down zapper before. Thought B might be able to stand on it , but no.
@ridgerunner - Yes - for some reason my B also floats or hovers unless I back up and come at the slider again. Thanks for P, C and R.
A few times I though there would be a shortcut, but every time it turned out not to be the case. The highest ball can fall on the wegde depending on the slider it fall along side of. That happened to me once at least. I restarted because that was probably a fluke. This level has a nice level of complicated logic for me.
Excellent level although I had a quite different gameplay but using the listed tricks & without doing strange things so no problem... both solutions are really nice .Thank you @Meko Guy