Just a side note; you can get different results with the same epoxy if the epoxy is close to or past it's expiration date. Stuck in a glove box, tool chest or shop that has high temps will affect the characteristics of the A and or B part of the epoxy. I have not tried the EA934NA but from all my uses with epoxy, if you have a base material like aluminum with aluminum or iron with iron/steel or wood powder with wood the bond is considerably stronger. If the manufacturer makes a similar product as a liquid and then adds aluminum(for example), use the clear to wet the parts that you are trying to assemble. Then use the aluminum based epoxy. Your results will improve greatly. Also, do not mix different brands of epoxy because they are all formulated differently. And finally, a roughed surface bonds better than a smooth surface. When you use a brass tube insert, makes sure it it clean and scuff with 320 grit in random motions. This also goes for repairs to aluminum. You don't need gouges but if you get to see how the epoxy flows and the bonds are created and then sheared you will understand.