2-4-8 betting structure

[Eihli]

Is it 2 preflop, 4 flop, 8 turn/river?

2 preflop, 2 flop, 4 turn, 8 river?

anywhere between 1-2 preflop, 1-4 flop, and 1-8 turn/river?

or something else?

[emptydoubleyou]

If it is like the 3/6/12 games in the boats along the gulf coast...

2 before and after the flop
4 on the turn
4 or 8 on the river.