As with me LIFE gets in the way as well as many others.
The great part is the boat is there always waiting for you. Cover and protect it if it ends up sitting for awhile.
I can see you are too determined not to finish off this ole gal. :}
Well... those are the answers you don't want to hear. Ahhh you already knew it though or ya wouldn't have asked. And good for you, we've all been there.
IDK..? I just always like it clear, that tells me I'm good. Sometimes you get a bad pc. of glass. I explain it off that the "Cat pissed on it."
Always work the top down.
Are you adding cabosil to the PB?
https://www.amazon.com/Fasco-Epoxies-Cabosil-Silica-Thickener/dp/B0756L83XR
You will find poxy will flow downhill so may need to keep working it.