Here is a little hint for you..
Do as Darock suggested.. Cut <carefully> apart...
Sand flat..
THEN....
Use your 'woodpecker' ,, yes, the one for covering...
Run it thourghly over both pieces making damn sure
it is completely covered with tiny 'holes'...
Always use 30 min set epoxy to join wings... Mix
glue,, use covering heat gun to warm both pieces..
Watch you do not over heat covering on ends..
The heat will cause the epoxy to get thin and flow
into the holes easier... And yes, it will cause epoxy
to set faster.. This will make for a stronger attachment
and reduce much of the minute bubbles in the glue..
Put glue on one piece,, work it well so it goes into
the holes,, do other piece the same.. Then stick together
making sure you have proper alignment..
Let set for few minutes then wipe off excess with
alky<99%> .. Keep wiping,, it will remove all
of the excess...