I agree on the pants running TTS for the most part especially on his standard skinny jeans cut.
His type 3 denim runs a little big. I'm a 33" to 33.5" waist and wear a 32 in the type 3. I couldn't even button the waist in his jeans in what I assume was his skinny cut in the same size although it was from at least a couple seasons ago.
The Richard pants have an elasticated waist (I believe) and a drawstring so even though NMWA measurement shows 32" it will really fit a 34.