53L fish vs 55L funboard?

Hey all, just wondering the general consensus is for a second board. Currently I ride a 8ft wavestorm, and I learned on a 9'1 longboard (both approx 80L). Also rented a 8'0 NSP prior to buying the wavestorm and loved it! (the maneuverability, had no issues paddling or catching waves)
I ride 5-7 days a week for 2-4 hours a day. I am 5'9 and 185lbs last I checked
I surf 2ft-chest high conditions usually, reef break.
I am considering a 7'3 superfish that is 53L, or potentially a6'8, 7' or possibly 7'6 midlength/funboard (48, 53, and 58L respectively)
Basically what I want to know
1) what are the pros and cons of a fish vs midlength / funbard?
2) is 53L too drastic a jump from 80L (I have paddled a bit on my friends 5'8 hybrid board (too little volume for me at this time - he also weighs 50lbs less than I do . No dimensions on his board other than length and them writing ''M.O.A.B." on the stringer
)
3) my local shop has a 7'6 board for rent which I was considering, and a 6'4 fish for rent as well. I was thinking about renting both to get a ballpark estimate of how they feel compared to the boards Ive listed above. Unfortunately they have only listed the width and length on these boards (I took pictures
), so I don't know the volume
4)Am I worrying too much about a 5L difference and board shape/type difference?
Links to boards:
https://shop.surfindustries.com/us/surf ... surfboard/
https://shop.surfindustries.com/us/surf ... hortboard/
I ride 5-7 days a week for 2-4 hours a day. I am 5'9 and 185lbs last I checked

I surf 2ft-chest high conditions usually, reef break.
I am considering a 7'3 superfish that is 53L, or potentially a6'8, 7' or possibly 7'6 midlength/funboard (48, 53, and 58L respectively)
Basically what I want to know
1) what are the pros and cons of a fish vs midlength / funbard?
2) is 53L too drastic a jump from 80L (I have paddled a bit on my friends 5'8 hybrid board (too little volume for me at this time - he also weighs 50lbs less than I do . No dimensions on his board other than length and them writing ''M.O.A.B." on the stringer

3) my local shop has a 7'6 board for rent which I was considering, and a 6'4 fish for rent as well. I was thinking about renting both to get a ballpark estimate of how they feel compared to the boards Ive listed above. Unfortunately they have only listed the width and length on these boards (I took pictures

4)Am I worrying too much about a 5L difference and board shape/type difference?
Links to boards:
https://shop.surfindustries.com/us/surf ... surfboard/
https://shop.surfindustries.com/us/surf ... hortboard/