Two Thoughts(a bit late-mayhap)
Wear the Sporran with a belt, not chain, the chain wears the kilt wool out faster.
Hang the sporran from the waist belt
For my soft waist belt sporran, I have two bar magnets: one inside the front apron, one inside the sporran at the back; - that keeps the sporran from flapping too much.
And yes, show some knee, the kilt seems a bit long.
welcome to a life long 'love affair' with the kilt
CSA