Reply by knotheadswoodshed

I recommend Danish oil first (I use Watco natural)...2 coats… this will “pop” the curl in your maple.
then depending on the end finish you want, what I would do, if you dont have spray equipment (and I am guessing by your opening statements that you dont) is to use a spray lacquer (in this case I would use Cabots super clear gloss).
I guarantee you will end up with it looking like this (the curl, I mean)

if you need more detailed specifics on the complete process, just message me

-- Randy - "I dont make mistakes, I make design change opportunities" www.knotheadswoodshed.com