Sorry, what I was trying to say is when I enter a comp I use normal glass bottles, however having talked to some brewers about Carbonation or lack of it. They suggested switching to the plastic bottles (coppers style), so when they are carbonated they go hard.
On the other hand I also have heard that oxidation is caused using them i.e. plastic this has never happened to me as I have just started using them and yet to enter one in a comp.
I know that beer is bottled in them and soft drink but just wanted to get a feel from this site of exceptional brewers.
Stagger