I am indeed a wizard! (also thank you)
Yeah, I'd have made the spikes more forgiving with, and I say this often, a little more time. Evidently I spent a lot of the time on that 'full game' feel and polish, and didn't really feel like I could tweak the spike collisions to perfection -- it would've been top of the list had I another day; or not uploaded as early as I did (but I needed a rest, and to call the project 'done').
Again, thank you! <3