With the ongoing discussion over the KBHM RWY 18 PAPI approach, I've constructed a profile with exaggerated height. The notes on the graphic probably explain all that is needed.
Edit ::-
IMTOY distance to I-BXO LOC/DME is shown as 3.3NM on the AL-50 plate, but in fact is 3.349NM - which is shown correctly here. The PAPI 3.20° G/S equates to a RoD of 800 FPM at 140 KTS GS.