Odd sizing - Rab Khroma GTX Bib - Men's

Love Rab gear/ Great materials but poor design for these bibs. I am 5’11 and weigh 195 and have a 34” waist and ordered a large- i could not button the pants or zip the oddly constructed “waist girdle”. I then ordered the XL and the waist fit but the rest of the pant was way too big. I returned them both. The removable “waist girdle” was massively uncomfortable for me- to me this girdle needs to be larger than your waist to be comfortable, in addition the zipper on the “girdle” is way too small. Why have this bib portion be removable? people that buy bibs don’t like pants generally. I LOVE love the height of these bibs- i am not a fan of the higher full chest bibs. Pls design a bib that is larger and more roomy around the lower rib cage area.