I planted my first attempt at it using Hankins method and I put down both gypsum and bonemeal (since my site is on the low side calcium wise)...
They sprouted and looked good the first 2-3 years but have not done much after that. I still have lots of little 2 prongs in that location, with just a few decent 3 prongs showing up now and that was 2010 when I planted them (7 years now).
All of the places I have planted that were somewhat questionable, have done about like that. They just have not done much, some are hanging in there, but still mostly 2 prongers, with a few 3's mixed in. Smallish and very little berry production happening.
Now the areas that I planted that had some wild ginseng present and doing well... the wild simulated has done well too. Although the wild sim that I planted rake and scatter method, they came up nicely, great germination, but because of being planted thick (4-5 seeds per sq ft as recommended in Scotts book)... they suffered really bad from disease the first few years - until they thinned out quite a bit, then that slowed down. What is left has done well, some nice 3 prongers in that area.
I am sure this varies by area, but in my area... I am much better off planting it thinly... just a few seeds here, and a few there, spacing it out nicely. That eliminates the disease, and cuts down on most of the deer browsing. They look happy and healthy.
I will never plant in big patches again with rake and scatter or hankins methods. It just does not work on my place.
I also think that fertilizing is some what questionable... if you fertilize during planting, it may help the first year or two, but unless you are prepaired to keep it up and add more each year, they will eventually do what they can naturally in that area (may be limited to small 2 and 3 prongs).
PS... on my place I got identical germination and first 2-3 year growth results from rake and scatter vs hankings method. Rake and scatter is MUCH easier.
I would definately lean towards that method...
But instead of making beds 5' x 50' (250 sf)... make them more like 3'x3' and put a dozen seed or so in that 3x3 spot... and space those out nicely. I think you would have much better luck with that, unless you really plan to work it, spray it, fertilize it, etc...
It takes about 5 years to see how your crop is really going to do... and by then you will probably be wising you had done things a little different.
I have been at it for 7 years now and If I had it to do over again, I would plant it all in small patches just here and there..
Good Luck !