DG-300 Wing fore/aft pin slop

I'm a new owner of a 1984 DG-300 with 700 hrs. Upon first assembly,
it is apparent there is approximately 1/8" gap between the wing root
and fuse. Also there is what appears to be a moderate amount of
movement of the wings fore/aft when moderate force is applied. What is
the acceptable amount of movement? Is there an adjustment, or shim
placement that could be expected?? I'll could feel "bumping" of the
wings in turbulent air. thanks...