Hi Dave ....
Good to hear from you ....
My Seamaster with the new wing weighs 8 lb. 6 oz. with no fuel ..... I don't know what it would weigh with the orginal wing .... But the new wing with one servo weighs 2 lb. 8 oz. ..... I am using full strip ailerons but may change later to TIP type...

The apparent instability may be my fault .... I never got a lot of stick time before I lost the wing and I fly from a large pond and tend to fly to far from shore .... Lots of trees on shore .... How much does yours weigh ?

Take care De VO1ET Jerry