I added washers to the centre post on my AGA-T's (four of them) basically doing what is also necessary with the bliSS (two of them as well) Welcome to "The Dark Side" mse12. Spot on advice Uma! Another thing that I recommend is to oxidise the ends of your wicks after you've snipped them to prevent bottom of the tank shorting. People always remember to leave a 1mm distance from the bottom of the tank, but after tapping the rig on a table or whatnot a few times, the wick can creep downwards.