Have a SERM on hand, always :thumbsup:
What I do for PCT is I still use a SERM, but I'll dose lower or end a few days shorter as necessary.
Havoc/Epi wasn't harsh w/ shutdown for me but always be prepared for the worst
I don't trust most OTC pcts to do a good job. But I have been hearing good things about Dermacrine sustain, so you may be able to make a PCT based on that.
While we're at it, what cycle are you running?
Obviously 20/20/30/30 requires a lesser PCT than 30/40/40/50/50/50...