Sometimes you stumble onto something that just works better. That's the case with Gorilla Wood Glue, a relatively new product. I ran out of my usual carpenter's glue and this is all I could find. Turns out it works better than any other glue I've tried, especially good on stick-built fuselages, where there are lots of small butt joints easily broken loose. Now on my second bottle, it takes a lot of balsa to use up 8 ounces.
This stuff is different from the familiar Gorilla Glue where you wet one side and clamp together. It's more similar to Elmers or Titebond, but it's not brittle, and therein lies its advantage. The nozzle is too fat, that's what the little bottle is for. Originally full of paint, I washed mine out and filled it with Gorilla Glue, much more convenient.
All is not perfect, it doesn't work well to edge glue sheet balsa together, that's what the 527 is for. It appears to be a direct replacement for Ambroid, which is sadly no longer available. It's not amber colored, but it works pretty much exactly like Ambroid, sanding easily at balsa joints.
And now for the best part: I found all these at my local WallyMart. Not sure about worldwide availability, but it should be stocked all over the USA. Give it a try.