Live in Vermont and there is a lot of talk about Conan.
I hear that it came from the Vermont Pub and Brewery ( source local Guru).
That the Alchemist uses the same strain for up to 16 generations. Hence, the variability in flavors from Peach to Grapefruit ( lower Attenuation, more grapefruit flavor).
My usual and very successful culture method for this hearty strain:
3 cans of HT: pour into a glass ( yes its brew time, not taste time!) 3/4 of a can that has been upright and chilled to 42 degrees, and decant the remaining beers with the top of the can sterilized into a 1.040 DME light solution ( that had been boiled and chilled to about room temp) in a 2 liter flask. Fill to about 1200 cc shake and cover with sterilized porous foil and wait a few days and pitch. You may also step up the DME concentration especially if you want more cells, etc. With this method I usually get the FG to about 1.016 to 1.014.
Sign Post Brewing had the best HT Clone that I could find but is now off the internet:
Here is my suggestions for good Clone:
https://www.brewtoad.com/recipes/heady-topper-clone-8