RE: Lanier Mariner 40 MKII ARF 62"
Jim:
That's what I did. I slathered a goodly amount on the very ends of the joiner before slipping them into the wings. The reason I didn't pour it in there as they suggest is that the length of the joiner exactly matches the length of the pockets in both wings. (I verified this by drawing a centerline on the joiner and then noting that it exactly lined up with each root rib when inserted into the wing halves.)