In my experience sleeves are longer than stated and don't shrink, a 33 sleeves it's more a 33.5.
tokyo slim fit 15 3/4 - 33 it's definitely slimmer than polo custom/regent and comparable to BB ESF 15.5/34
The differences are the slimmer waist and the sleeves a tad shorter.
My next order will be tokyo slim 16 - 33 1/2
I suggest you to buy at least two similar sizes to test them