GenX: Ugly bends! Help!

Ashfire45

After -finally- managing to successfully transfer my favourite Aiko 4 gal to Genesis, I was doing some testing with the bends...And there's some, err, issues with arm bending, most commonly, although sometimes the legs - as you can see from the attachment, it's...pretty ugly. I'd really like to fix it, though, and transfer this Aiko 4 charry to Genesis. Any other characters I transfer have this problem as well.

It must be something to do with the weight map; every time the flesh of the arm should collide and squish, it creates that unsightly gap.

Any suggestions? =<</p>