I have the same reticle on my 9.3x64. When I purchased the rifle I was going to change the reticle. After some range time and playing with it, it is still on the rifle and I may change it to a #4 some day. What I'm saying is it's worked OK for me. Not a tack driver at the range, but not bad, and is better than I thought it would be in the field.
For a reticle change on a Zeiss in Canada call:
GENTEC
90 Royal Crest Court
Markham Ontario
L3R 9X6
905-513-7733
They send them to the States and it takes awhile. 6-8 weeks is what I remember them telling me.