Now days you can get a zapper for $10, that does work, and does give you results, and while even if it takes longer, it just doesn't make sense, (especially for some one who is not chronically ill) to spend money on equipment they really are not sure of. Personally, I don't even trust a blood elecrifier, though it may just be because I don't know all about them, but it really does sound a lot more complicated and dangerous, and good blood can be acheived through diet and removing parasites
and toxins. Dr. Clark's protical is not simply Zapping your troubles away, it's a lot more changes. (Any one who has not read Dr. Clark's book, really ought too!) One of the reasons she still recommends the herbs is because Zapping is not for everyone, including those who are pregnant and those who have pacemakers. Also, there are some who would rather use the herbs because they are scared of electricity, not to mention Zappers used to cost more then the herbs.
Just my thoughts here