I can't help in much else but I am sure I can help you here!
First let me advise you to disregard all postings that portray hand sharpening as a mystical science that requires superhuman skills. All you need is a firm hand, a good eye and a bit of practice and you can get that bk2 shaving hair off your arm in no time.
I went to my home depot and purchased a
double sided norton stone, the cheapest one for around $4. The darker side was hoarse while the more grayish side was fine.
Since this was an oil stone, it required the use of some kind of mineral oil for it to work properly. Here you can even use WD40. I personally didn't want the ugly taste of WD40 on my blade since I intended to use it for cooking, and chose instead to pick up a
norton brand mineral oil, which was right in the same section at HomeDepot and leaves no taste or smell on the blade. This was around $4 as well.
With those two things, an old towel underneath the stone, and generous amounts of oil (you must soak your stone first), I was able to get a pretty good edge on my blade, close to how it was when it came from the factory.
I was however not satisfied and wanted more, so after much research I ended up purchasing a
lansky spider stone for around $8 bucks at amazon, which not only gave the edge an amazing finish, but was also small enough to carry onto the field to maintain the super fine edge. THAT WAS A KILLER COMBO!
You must keep in mind that the lansky sharpener is water based and could be ruined if it soaks up too much oil, so you must clean any residue from your blade when you're done using the norton stone and wash your lansky stone after every use if possible.
Now here are a few tricks that I've learned to get a hair shaving edge:
1- Make sure that you prepare your stone and use plenty of oil.
2- Use a forward motion instead of a trailing motion, as if you were cutting a slice off the stone. If you trail, you create a burrow which might trick you into thinking you have a good edge. Trailing motion reduces dramatically edge retention and isn't very forgiving with the angles. By using the forward motion you give your blade better support, thus lasting longer.
3- Make sure to start your motion where the edge and the stone meet. You may have to look carefully before every pass to calibrate the right angle. This is ok to do, at least until you have developed the skills and the confidence to do it by memory.
4- Use an old leather belt to strop your blade.
5- Practice!
That's how I got my BK2 with hair shaving edge for under $20!
I hope this helps.
Thank you so much though