Ed G wrote:

...
Ed

Clamp 'em on, recheck match/swr/your-chosen-methods-of-tuning (or, with
the gods--for that matter) to antenna ...

It can't explode; well, I don't think it can!

Since the power flow is on the center conductor and the inside shield of
the braid, any impedance of unwanted currents on the outside would,
logically, be of some benefit ...

If it ain't enough, buy more or change to a different type of material.
Knowing the expected values of components, and benefits to expect,
would only put a lot of icing on that cake ...

Regards,
JS