Flowering apricot bonsai with shot hole disease aka Corinthian blight,

[glacon]

I have a flowering apricot pre-bonsai I am working with. It got a major cutback and wiring over the late winter after it bloomed. The leaves are showing signs of Corinthian blight also know as shot hole disease. It seems to have progressed over the course of this past week. I pinched the worst leaves off, and I have fungicide coming tomorrow. There may be evidence of it on one of the branches (has some splotchy purple coloring). My understanding is I should not pull all effected leaves off. Should I wait to spray it with the fungicide until the leaves are more developed, as currently they are all new)? Any advice would be greatly appreciated. It has a lot of potential to become a lovely little tree. Would love to halt this before it gest worse.

 

[glacon]

Here are some photos of the leaves. If anyone could let me know if this is leaf shot, or if not, what it might be, I'd appreciate it.