Well I think i am going to glue them in too (maybe even cyno as 1 stringer at a time with PVA will take me weeks), I dont see the advantage of leaving them loose. Thats a whole lot of jigging there Glenn or my few ply/balsa jigs are insufficient.
How did you cut that tail fairing?- also only 4.5mm balsa i had has been used for my jigging (Doh!!!) could i use a lamination of 3mm and 1.5mm
P.S. looking good there, has it been finished and flown yet?