Hay Chris,
I was surprised to about the Roto tank, for I've run then with excellent results in the past. But you never know and I also removed the three way filter I used too. Now to be honest I don't know if it was a combination of several things, to include the possibility my carburetor-or just the fuel tank itself. But its working now and happy with the results.
Here the pictures of my old fuel tank instillation and the new one I'm now going to run.
Soft landings Always,
Bobby of Maui