FIREWIRE SUBMOON WHICH SIZE

HI,
I am 40 and surf since 8 years byt only about 20 days a year. So I am still beginner/intermid or maybe intermediate. My weight is 210lbs (95kg) and height 5'95" (182cm) and avrage fit. I ordered Firewire submoon 8'7" volume 67 l. I wonnder if i should have maybe a little longer for ex. 8'11' could be better? does anybody surf this bord and can give me an advice?
2. I have simply future fins thruster is it good or should i comlete another set maybe quad?
Thx
Oradatsam
I am 40 and surf since 8 years byt only about 20 days a year. So I am still beginner/intermid or maybe intermediate. My weight is 210lbs (95kg) and height 5'95" (182cm) and avrage fit. I ordered Firewire submoon 8'7" volume 67 l. I wonnder if i should have maybe a little longer for ex. 8'11' could be better? does anybody surf this bord and can give me an advice?
2. I have simply future fins thruster is it good or should i comlete another set maybe quad?
Thx
Oradatsam