Yep Mike, you could do that if you prefer, keep Aworka 100% up to date until end of month, CP 100% from 6/4 onwards.
We would do a reset and reimport from Aworka on 6/4 so you wouldn't have to worry about keeping CP 100% for the next 3 weeks (lots of effort updating 2 systems).
Only thing is we'd have to tidy up those email addresses again to get your GC to sync! No biggie though.
Up to you, let me know what you'd prefer.