Nige, Gary means using one of those huge floats (Pike or sea float size) with a method feeder attached at the bottom, They are huge contraptions that i don't class as fishing, just think what would happen if you hit a fish sub-surface with theat .....
Ryan
(I have nothing against the floats you have linked to, pretty good for the pellet wag, or being lazy on the lakes chucking it out with corn on the hook, with a tight line waiting for a wrap around.)