Thanks for your reply!
My plan eventually would be to get into twin 10's or 12's so no doubt no matter what system i go for I will need to change out the wing but keep the harness and back plate.
I used to do some diving with a guy who swore by halcyon and to be honest drilled halcyon into our heads ha ha
I was looking at halycon stuff last night and had a look at this kit
it seems like when the time comes I will just have to swap out the wing for an evolve or similar and i will be able to dive with twins.
I am open to advise on the above as I really have limited knowledge on wings.
I am also based in Dublin and would be very interested to see some different setups