I posted a question months ago concerning bladders inside of wings. I have a combat kitten currently with a tee dee mounted in the nose. I was told this is way too much engine for this particular plane. I personally didn't have any real issues with its power other than the fact its turns can be quite fast. I've had the fuel run away from the pickup which caused some issues. I had the plane even quit in a hard manuever. I've tried richening the run only to find poor running qualities. The plane has a long wedge Perfect tank built into the wing as shown on the plans. I've done a few things such as lengthened the lines, used a smaller pitch prop, added additional shim under the plug. I even swithced back to stock Cox plugs. I now have a tee dee with a 4-2-4 break. This has made the engine more friendly, but not what I expect from a tee dee. I've capped one side of the tank hoping to improve fuel draw but same problems as usual. Is it possible to pressurize one of the vent tubes of the tank I'm using with a balloon as an assist?

Larry Kruse has an excellent write up on making bladder tanks in his F/F sport column in the latest, June 2008, Flying Models.  Tells what to use and where to get it.  It would be wonderful if some one could contact Larry Kruse and get him to post the bare bones of the matter here.