Picking new shortboard intermediate surfer

Dear everyone,
I am an intermediate surfer surfing now every day in the Atlantic ocean since 5 months ago. I am 189 cms and 86 kilos. At the moment I have a 6.6 38 litres board with no rocker which is supposed to be a board to learn how to used shortboard. To be precise it is a 6 6 x 20' 3/4 x 2' 5/8 38 litres.
I do manage to do some duckdiving in waves up to a meter even if my technique is still not very good. Whenever the surf is rougher than that it is a total disaster. I am aware that my technique should get better but still the board does feel very buoyant in slightly bigger surf. It was actually sold to me when I was a beginner and was told it was for pretty small conditions.
Now I did some surfboard research and I found a board I like which has less width and a nose which is more pointy it looks slimmer and less "fatty" plus it does have some rocker. It comes in all kind of sizes but I have identified 3 possibilities.
- 6' 6 x 20 1/4 x 2 5/8 36.61 l
-6,4 x 20 1/8 x 2 5/8 35,46 l
- 6,4 x 20 1/8 x 2 3/8 35 50 l
The surf shop person thinks I should stick to a 6.6 and that I would feel a difference already when duckdiving since the board is slimmer and it has less volume. I wonder what difference would it make if I go down to 6.4. It seems to me a bit of of a waste of money to buy another board which is so similar to what I have.
Many thanks for your opinion
Best,
G
I am an intermediate surfer surfing now every day in the Atlantic ocean since 5 months ago. I am 189 cms and 86 kilos. At the moment I have a 6.6 38 litres board with no rocker which is supposed to be a board to learn how to used shortboard. To be precise it is a 6 6 x 20' 3/4 x 2' 5/8 38 litres.
I do manage to do some duckdiving in waves up to a meter even if my technique is still not very good. Whenever the surf is rougher than that it is a total disaster. I am aware that my technique should get better but still the board does feel very buoyant in slightly bigger surf. It was actually sold to me when I was a beginner and was told it was for pretty small conditions.
Now I did some surfboard research and I found a board I like which has less width and a nose which is more pointy it looks slimmer and less "fatty" plus it does have some rocker. It comes in all kind of sizes but I have identified 3 possibilities.
- 6' 6 x 20 1/4 x 2 5/8 36.61 l
-6,4 x 20 1/8 x 2 5/8 35,46 l
- 6,4 x 20 1/8 x 2 3/8 35 50 l
The surf shop person thinks I should stick to a 6.6 and that I would feel a difference already when duckdiving since the board is slimmer and it has less volume. I wonder what difference would it make if I go down to 6.4. It seems to me a bit of of a waste of money to buy another board which is so similar to what I have.
Many thanks for your opinion
Best,
G