Board Advice

Hi guys, just discovered this forum and loving all the great advice.
I've decided to give surfing another go, after 10yrs of doing none. Perviously I was still a beginner, getting to my feet, but on a board that was too short for learning on a 6'10 fish. I'm 39yrs old, 5'11 and weigh 83kgs with good fitness. (Swim about 3km's a week).
I got back into it a few months ago, by taking 6 lessons on 8ft softboards. Since then, I've been out 3 weekends in a row riding a 7'10 NSP battered rental in beach break. Getting up on about 80% of waves and got up on a couple of green waves in 2-3ft which was epic. Have been able to turn front and back side and then straight line down the wave, til it runs out of power/ me into the shallows.
Am looking at buying a board and wondering what to go for. I've got the opportunity to buy an epoxy 8'6 mini mal which is 8'6 x 22' 3/4 x 3 1/4 for £250. Or could look around for an NSP.
What I want is something to catch as many waves as possible on. Advance my ability and water skills.
Would the 8'6 mal be more cumbersome, than going for a 7'10, or 8'2 NSP (or similar), or would it not make any difference, at my ability/level. I found the 7'10 NSP rental a lot more manouverable and easier to turn in the water, than the surfschool's 8ft softboards.
Any help or advice appreciated.
I've decided to give surfing another go, after 10yrs of doing none. Perviously I was still a beginner, getting to my feet, but on a board that was too short for learning on a 6'10 fish. I'm 39yrs old, 5'11 and weigh 83kgs with good fitness. (Swim about 3km's a week).
I got back into it a few months ago, by taking 6 lessons on 8ft softboards. Since then, I've been out 3 weekends in a row riding a 7'10 NSP battered rental in beach break. Getting up on about 80% of waves and got up on a couple of green waves in 2-3ft which was epic. Have been able to turn front and back side and then straight line down the wave, til it runs out of power/ me into the shallows.
Am looking at buying a board and wondering what to go for. I've got the opportunity to buy an epoxy 8'6 mini mal which is 8'6 x 22' 3/4 x 3 1/4 for £250. Or could look around for an NSP.
What I want is something to catch as many waves as possible on. Advance my ability and water skills.
Would the 8'6 mal be more cumbersome, than going for a 7'10, or 8'2 NSP (or similar), or would it not make any difference, at my ability/level. I found the 7'10 NSP rental a lot more manouverable and easier to turn in the water, than the surfschool's 8ft softboards.
Any help or advice appreciated.