Last week I had to move my back wheel a little more backwards to put some more tension on the chain. I just hate the excessive back and forth play when trackstanding. Now I feel that the tensioned chain is getting loose again and it's just been a week!! I run Formula track hubs with track nuts so there's nothing wrong with the way I tighten the wheel. I'm also running a 3/32 set. Here are my questions:

1. Does a 3/32 chain stretch alot more then a 1/8?
2. Should it be as bad as I describe it?
3. How often do you guys need to add tension to your chain?
4. Do you have any solutions cause I really hate a loose chain on a fixie?