Why use a smaller flopper? Don't know, maybe: less weight/drag at muzzle, quicker to open when the spear exits* the fish, "flight" characteristic of the spear, balance droop in the centre of a rail-less barrel.
*Might be important in a small cave or if shooting fish (e.g. flatties) on/near the sea bed.
The same thought occurred to me though when I noticed this while browsing the new
Rob Allen website:
"Replacement spear barbs are available in four sizes:
85mm, 71mm, 53mm and 48mm"
Although I don't understand French, it seems to me like there is a section on the above link that mentions certain size floppers being associated with certain length spears (maybe
).
