I'm a new player - I've put my first 6 rounds in the handicap calculator on this site, and it spits out my handicap factor as 29.8

From what I understand of the new handicap rules, you are supposed to take an 8-max if you are 20-29 and a 9-max if you are 30+

Am I supposed to round my handicap to 30 and play 9-max? Or do I belong in the 20-29 group?

Thanks!