OK!!!

Really, I was only making a point.

I recently replaced the OS 91 I had in mine with a YS 91.

Along the way I managed to pop out one of the blind nuts and I had to remove the tank to replace it. During the process, I had a good look at the firewall, and saw nothing to cause me any concern - YET

We'll see how well it holds up to the YS.

One thing I DID notice however was that after sitting over the winter the stopper on the tank had become very loose, so that's another thing to keep an eye on.

BTW, I got two flights over the weekend with the YS 91 and it's a screamer!