Tritebond? That would have made a great "Wacky Pack" graphic, back in the day!
Personally I prefer a very shrinky wood glue like Carpenter's Glue by Elmers. I don't particularly like Titebond II as it doesn't shrink. I don't have experience with original Titebond so can't comment on it. In this application (fin to tube), the shrinking makes for a more rigid, tighter bond IMHO. I like Titebond II for couplers and centering rings specifically because it doesn't shrink and cause Coke-bottle effect.
Elmers White Glue will be fine too. It will hold plenty strong too.
For fillets I recommend Titebond Moulding and Trim Wood Glue. It doesn't shrink, and it's thick enough not to run. Stays where you put it.
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