I put side dots on my EUB, and as an occasional player I appreciate them, but they really are just for quick reference, if you're not listening to the notes, you'll be out of tune. Your fingers and ears need to know where those noes are... I also find that in the vertical playing position, the parallax of where you think the dots are, vs where the note really is can be pretty deceiving.
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(my objective to 'not be suck' has been mostly achieved, but do I need to play it more than just a few hours a month...)