Cynric, you have answered your own question.
when I try I get something with about 6 different angles on
Is it six jigs for all the individual angles, or one jig with all angles the same.
To be really honest, and I have said this before, it really is just a matter of getting down to it and playing about. The angles are not super crititical, and most angle grinding charts are for 'ideal' situations. 99% of the work we do couldn't really be classed as ideal.
It is easy for me to tell you how easy it should be, because I do it all the time without thinking about it, but I do understand your frustrations about getting it right.
Concentrate on one face at a time, get it right, then go to the next one.
I always grind side, front then top, if that is of any help.
If needs be, felt tip mark up the part you want to grind, with the angle you want, and grind away until one face is done, then grind the next face.
A few basic rules
Keep the tool cool when grinding.
Always keep your grinding wheels well dressed and with nice square faces.
Make sure you have rigid tool rests. If you have ones that wobble, you will get nice wobbly faces.
After you have finished grinding, hone the top face to give nice keen edges on top of the front and side faces. Don't use diamond for honing HSS, if you can, get an Arkansas stone for doing the job. Mine is about 30 years old and still doing a good job. If you can't get one, a fine emery stone with oil should be OK, or even a large chisel oilstone will do. Those edges have to be razor sharp for doing a good job.
John