RM,

When the flex header goes, do the fiberglass and ultra copper repair. It's much better than Teflon unsintered tape that DA uses. Or you can do it now before the tape leaks all the black gunk through it. You would have to remove the tape and rewrap the flex joint with the treated fabric. I found its easier to place the fabric in an envelope of parchment paper and work the Permatex into the weave with a wallpaper roller. Three wraps around the joint with plastic cling wrap wrapped tightly to hold everything snug, will have you back in business. Allow at least 24 hours of cure

A shame that engine problems seem to persist. You have had more than your share.

I just completed the rebuild on my first GT33. I haven't run it yet but very soon. It's in the newly reworked Griffin which was all electric but now is modified for gas. It should be in the air next weekend.