One thing I noticed in an 8oz tank is that tygon is not flexible enough with the short length of fuel tubing inside the tank. I used Viton and still wasn't that impressed and ended up using the ZF-4 instead. Not a problem with my 14-16oz tanks... unless you forget to change your stiff tygon out
Curious what tank you are using that is 10oz????
Sweet! Reminds me of my Grandma's. I can still hear the squeek when it would oscillate.