I use a single-clip Protos-M to carry my P-07 when I want to be most comfortable and go without a weapon-mounted light. It is the most comfortable IWB holster I have tried. That backing material really works good to hold it against your body. I also have the regular two-clip version, equally comfortable, but I rarely use it because with my belt and gun I don't have any sagging issues, plus single clip is more convenient to put on / take off and to stash away in one of my lock boxes.
Dual-clip Protos-M is actually a lot of holster for a G43 I would think. I guess it must feel like carrying nothing at all. I sometimes carry a Sig P290 RS of similar size and weight, but because Black Arch doesn't make a single-clip Protos-M for that, I got a single-clip holster from Hidden Hybrid instead.
In all cases I normally either modify or replace the quick clips or raven clips on these holsters to ride higher and provide a better master grip without interference from my belt line. I either replace the three-hole clips with two-hole clips or cut the third hole off with a dremel.