Was reading a lot of articles about the best way to re-grip a board old or new, my experience just recently was resurfacing my new but old 2012 Ultra Sonic that i was lucky enough to score from the Eastern States.
After a bit of research i decided to go with epoxy resin 1-3 ratio and use normal white sugar instead of caster sugar. YEP that sure worked all i had to do was give it a light sand after 12 hours and the board is like new again.
Ps for that extra energy bust while cruising the waves just lick the deck for that sugar hit lol