Good point Doc - packing tape isn't the best - any other ideas on tape?
And I think it was suggested that you can replace just the inserts.
I've had very good luck with my customers using the tape made for shrink wrapping boats, rv's, etc. You can pick it up at pretty much any marine store. Also, if you use this, I've heard using a hair dryer on the tape after it's adhered really helped it stick.
I've been recommending this for about 6 years or more now, and only had positive responses to date.