I'd been dreading this since making the decision to put fillets along all the ribs and sitffeners. Since I've tried to be careful to keep a neat, clean tank, I didn't want to just smear big gobs of sealant in all the corners, so I decided to mask everything off ahead of time. After smearing the sealant, I hoped to just peel off the masking tape and leave a nice, even bead.

Here's the inboard most bay of the right tank all ready for filleting. It took about an hour to apply all this tape.

The tape worked well. It only took about 15 minutes to smear fillets all around this bay and peel the tape off.

Here's a close-up showing how nicely the fillets came out. I'm pretty happy with the result, but I'm dreading having to do this over and over and over again.

Instead of doing a bay at a time, I decided to do the rest of the tank in three phases.

After eating dinner and going out for ice cream with Kerin, I masked off and filleted the bottom flanges of the ribs on the right tank. The skinny bay at the outboard end is a real treat to work in. NOT! ;-P