I know exactly what you mean mate. I seem to remember my own belt kit being a mass of pouches when I was in the infantry, based primarily around 58ptn. Modified 58ptn belt (roll-pin buckle extension), 58ptn Ammo pouch, w/bottle (44ptn), 3x kit pouches (about the size of a 44ptn ammo pouch but produced by the civilian firm Arktis), w/bottle (44ptn), sheath knife, resp' haversack, 58ptn ammo pouch. Poncho Roll above, NBC roll below and Bergan.
When I transferred to the engineers as a driver/radio operator my kit soon changed to that which I mentioned earlier in this thread, same belt, 58ptn ammo pouch, w/bottle carrier (44ptn) X2, resp' haversack, 58ptn ammo pouch. The rest of my "ready use kit" was stashed in a 44ptn small pack, with my bergan as back-up in the back of my "Lanny".........Simple but effective.
I used to complain about the weight of the kit that we carried, (40>50 pound belt kit alone when I was infantry!), but just before he deployed to Iraq and Afghan, I tried my sons kit "for size", and I know that I am a lot older and less fit these days, but I struggled with lifting it and that was BEFORE the addition of ammo scales etc!!
I believe that one of the original design criterion for the 37ptn webbing set was based on the fact that any future war was expected to be highly mobile and that any "excess kit" would be transported in unit transport.
Ramble over for now.