Yup, just finished the Tiger 60 ARF.....lots of extra weight needed, even with a Saito 82 up front!

I'm just getting back to RC after ~6 yrs or so. One of my favorite models when I got out was my Tiger-2 w/Saito 50. Built from a kit, it was my 2nd Tiger, (first one.....oh well). Don't remember having to add excessive weight to those. I liked tha plane better than my Super Chipmunk and GP P-51.

I called Goldberg about the 60 ARF and the fellow told me he has an early 60, (rud and ele servos in tail), and he had to add 14oz!!! Says it will handle the extra weight no sweat, (?).
12 oz, in the 40 size though, seems excessive, but from my experience with the 60, it sounds like it may not be unusual with these Tiger ARFs.

I've also noticed that it also wants to drop the tail with a slight nudge even when the CG is right. Goldberg told me that when I get it fueled and taxi, the downthrust will compensate, hmmmm. He said the main gear is placed near the CG to allow for a nice rotation on takeoff, (we'll see).

I still need to find a decent weather window to break in the engine and then I guess I'll see if it is as good as they used to be.

Take care.