Matters of style

[McFarkus]

One thing I notice is if the sporran strap is under your belly it can accentuate it, if you bring it up a bit so it does not go underneath it helps.

You can avoid this problem by wearing sporran hangers instead of a sporran strap. And definitely wear a kilt at or above the navel (a full-rise kilt will do this for sure. This tends to disguise the paunch. Whereas a kilt worn at normal pants height emphasizes the paunch). Properly worn, the kilt can have a slimming effect.