I see an integrative gynecologist, Dr Felice Gersh, who is very knowledgeable and experienced on prescribing and dosing hormones. She has been doing it for decades. She strongly advises against the use of pellets as they are difficult to dose correctly and they are in your body for several months. She has seen many patients who have been overdosed on them. As a side note, a friend of mine used testosterone pellets and lost a lot of hair, a known side effect of too high a dose. The article sited above is by the founder of BioTE pellets so is likely biased in his perspective. If you choose to use testosterone and other hormones, transdermal seems to be the safest method.