i currently have 3 main boards i ride with a 4th on its way.
my 6'4 shortboard is for everyday use will take it up up to about 10ft its great in fast beach break its okay for inside reef takeoffs as well but does not preform good in thick ledgy waves.
my 6'8 shortboard is for bigger waves say 10ft+ also used for thick waves that some of the reefs produce.
My 7'6 funboard is basically my small small small wave board - the choice in ankle slappers.
I have a 6'1 on its way that is when i finished shaping it - thats gonna replace my 6'4 in chest to OH waves im hoping i can carve it out to preform in hollow beach break and give me an edge in super steep takeoffs.
I also have a 5'10 fish and a 6'5 fuller shortboard being shaped not sure what the hell im gonna do with them......... Then again im sure i will find a place - you can never have too many boards

all my boards are tri fin set-up although intend on turning the fish into a twinner and at some point i wanna get a quad shortboard.