You boats are beautiful !!!! I used to have a canoe and was out in it every chance I got. Do you have other pictures of them? Would like to see more of the detail.
Ive used that also and the tensile strength of the glue joint wasnt as strong. Try glueing 2 pcs of wood together in a "T" with both glues and give them a few days to cure then put them both in a vise and whack them with a hammer in the same manner and see the difference. I know the West System is more $ but so far I havent found a better glue for this stuff although Resourcinal isnt bad either but a real PITA to work with.
I dont know what weather you have down there but it has far better results in expansion and contraction and we have a lot of that over here with our crazy weather. Dont know if youve ever heard this before but over here in New England the saying is "If you dont like the weather, wait a few minutes"!