Elox Z repeatability help

I have an Elox sink EDM that's new to shop. I've spent a week figuring out how to set up and program this new dinosaur pretty successfully. However I notice with my current setup, I'm not getting consistent Z depths along my repeating tool path. The way I have code currently set up is like this:
O0001
G17
G20
G90
M3
M51
G0YX0Y0Z0
(S.A.P. FUNCTIONS)
(TOUCHOFF Z)
(SET CURRENT)
(CUT TO Z DEPTH)
G0 Z+.5
X1.125 (X2.25-X3.375-X4.5 ETC.)
Z0
(S.A.P. FUNCTIONS REPEAT 6 TIMES)

Now the problem I have been having as I see it, because I'm touching off every position's Z; the Z depth is going to fluctuate. Is there a line of code or perhaps another method of coding so I can touch off Z once and then move to my other positions while holding that Z? Thank you.

I seem to have figured out my problem. Basically I created another program to only find z, and set that coordinate to zero. After deleting edge finder lines from my main program z is repeating much better. Hope I could help someone out there.