Tony,
I've used Bio-groom before and can't say as I really cared for it. It stripped my dogs of their oils completely, and their coats were just awful about 4 days after their bath. They felt horrible to touch, they were full of dandruff, etc. I find Bio-groom to be a pretty harsh shampoo. The smell of it also got to be a bit much during the bathing process. It smelled good at first, but was really strong and overwhelming after a bit. I'm sure it works great for many people, but personally, I know very few dogs that have done well with it. Though I have to say, that the ones I know who did tolerate it well were Bichons and Poodles, so maybe it would work well for you. I much prefer Earthbath (also a fan of the Mango Tango, but I also like the Aloe one) and it is by far the best shampoo I've used so far.