For those interested here's a comparison.
IH-2526J after 27 wears. I personally find the IH-2526J about ~1.5 inch too short. Though I still haven't found somewhere to buy a 24 ~ 24.25" white shirt yet (to match my Medium IH-526J-142 which is 24.2"). The collar is stiffer so can be worn popped up.
IHSH-189-BRN after 3 wears. I sized down in the IHSH-189-BRN with the intention to wear it with just a tee. The heavy duty copper snaps are quite nice, with beefed up male sides. The material on the back I think will drape a bit nicer with more wear. The way the combs are forming on the arms is quite nice.
| | Left | Right |
| Item | IHSH-189-BRN | IH-2526J |
| Item Size | Small | Medium |
| Item Length | 28.9 (73.4cm) | 23.1 (58.7cm) |
| Tee Length | 26 (66cm) | 24.75 (62.9cm) |