Seems like the common factors are E85 and an interchiller. I’ve been running E85 for a few months with no issue but I haven’t installed my interchiller yet. I believe there is speculation that shutting off the engine with the SC IC fluid cold, that condensation is forming somewhere and this is what’s causing it to take the extra time to get started. The E85 may or may not be a contributor and it could just be that people that invested in the interchiller are all modified.
If someone could try the method suggested and report back, that would be awesome. I live in a pretty humid part of the country so I’m thinking that I’d be having the same issue when I put my interchiller in.