Ken,
It seems everyone on the forum have all tried different types of Mucuna, tincture, seed, tablet and powder which makes it a bit over whelming and confusing. Your best bet is read some of the posts as I was advised to do. It is hard when it comes to telling anyone about medication, supplements, herbs etc. what works for you might not work for me. Too many variables.
I ordered Mucuna tablets from California, with no problem getting them across the border in a week's time. I did wonder about that myself. Anyway the tablet potency seems too much for me. I may try them again later.
I order a Mucuna powder from India. A two month supply plus $2.00 shipping cost around $27.00. It arrived approximately a week later.
My source for Zandopa in India is
http://mall.coimbatore.com/bnh/zandu/zandopa.htm