You'll definitely want to make a few small or practice batches first just to get the process down, and so you can get your personal/preferred dosage squared away before you make one very big batch, that's either much too strong, or much too weak.
With the lecithin, anywhere between half to three quarters of a teaspoon per tablespoon of oil is acceptable, and you can feel free to experiment to find if more or less better suits your needs. Any amount of lecithin you use in that vicinity will noticeably aid in the effectiveness of your oil, versus using none at all. The main caution with using too much is that you risk diluting the ratio of the 'true' active components.
I very much recommend making hash or kief from your herb, to use for your capsules.
The 'waste' herb from the hash making process is not all waste, particularly if your hash extraction was gentle. Before you even get to the hash oil, you can make a quick coconut-lecithin oil run with the resulting herb, once it has been decarbed, starting with a larger quantity of oil than you wish to end with (knowing more or less will often be left behind during the straining process).
You can then use this resulting weaker canna oil, as a base oil for your hash, and continue the oil and capsule making process as usual. This is much easier, and results in much less waste, than the alternative of running, and re-running the same oil through multiple batches of fresh canna, in order to achieve a concentrated potency.
And again, dosing is entirely up to you, it is dependent on your needs and how well you processed your materials. Capsules made for patients start around 0.10g - 0.15g when made from concentrate (high potency hash or extract). For experienced or heavy regular smokers, and folks who either consume edibles on a daily basis or suffer from digestive difficulties, they may require doses as high, as ranging between 0.25g - 0.35g per cap. That's roughly 2.1+g concentrate per teaspoon of oil-lecithin, taking into consideration the displaced space for the concentrate, and the oil and lecithin when all combined, knowing that you get '5 x 00' caps from a teaspoon of total
Meaning that 2.1g, plus one teaspoon of oil and lecithin, does not still make a liquid teaspoon of oil and only 5 total capsules, but instead enough for a teaspoon and
one or so ml, or roughly 6 capsules. This gets easier when you begin making them in higher quantity.
If your measurements or proportions wind up somehow 'off' by the end, and you find you've made more or fewer capsules than you expected, you can always take the amount of hash or herb you know you've used, and divide that by the number of capsules you finished with, to find the true dose-per-cap.
Hope this helps
Edited by BadKittySmiles, 08 April 2011 - 05:50 PM.