Dread, I suggest you check with Rocky or Kelly about that, if they made the kilt they are best positioned to fix it or advise you.

I know the problem you mention, I've seen it too in the Philabeg, but not in the 8 yard traditionals.

I may be wrong, but I figure that an 8 yard kilt has both the material and the extra time that goes into it to make a really nice fitting kilt.

I have two traditionals from USAK and both fit, hang and swing wonderfully.
As for the casuals and philabegs, they're fine but you really do get what you pay for.

Having said that, I know Rocky would be happy to do what it takes to satisfy you, he's been great to me, and he knows his stuff.