LAST PRO-SEAL.... I'm glad to be done with this stuff. Installed the access cover using "pro-seal only" (no Gasket). I used allen head screws in place of the phillips head srews as many other builders have recommended. Less likely to strip out should removal ever become necessary. Insatlled the fuel level sender with sealant. (No gasket). Time to let it all set and cure before leak testing.
