Thanks for all the info.

I also asked the question about West Epoxy on other forums, including here in the UK. Bearing in mind that a large proportion on these Resins sold are used for Yacht/Boat construction and most aeromodellers have not build a full-size boat, most replies said "don't do it".

So, I did! Not having any proprietary thickening mediums, I used hardwood sawdust and made nice thick glue to test. It would fill a nice big 1/8" thick gap in a joint . . . not even my woodwork was that bad! When cured, I could not pull the joint apart, only breaking the wood else ware.

I've now done one the gluing jobs around the front end ~ firewall and Engine box and I have 100% confidence in it.