Longboard 9.0 or 9.3ft any difference?

Hi, im beginner surfer and looking to upgrade my 7"6 softboard (been told it is middle of the nowhere..) and take step back and get Torq The Horseshoe 9 or 9.3. Even if I get a fish or other shortboard in the future I am looking at the longboard as long term investment and keep it for a smaller waves. I am 71kg/156.5lbs. My local surf shop only has 9.3 but some people told me 9ft would be enough. I may not feel much difference now but wondering if 9.3 would impact my maneuverability or are we just talking about marginal difference? I would like to learn some noseriding as well. would be grateful for any thoughts and suggestions. Below are measurements of both models:
9’0 x 22 7/8” x 3” - 71.4 ltr
9’3 x 23” x 3 1/8” - 76.9 ltr
9’0 x 22 7/8” x 3” - 71.4 ltr
9’3 x 23” x 3 1/8” - 76.9 ltr