Sensi Jack and Sannies Jack are both in our garden. Both are VERY similar. Mind you, we have been growing Sensi's for much longer and believe we have the "perfect" pheno for our liking. I will say, if i smoked the 2 of them side by side, I couldn't tell the difference.
If i had to do it all over again, I'd go with Sannies based on the price. Yields are also very much the same.
Jack Herer is one of, if not my very most favorite bud on the planet.
For the past few months i have been going thru some very rough times mentally, and i must say, Jack has really helped. I think i smoked it basically everyday just to defeat some demons and sort some things out. When depression really hits me, I wont do anything at all. A good buzz from Jack had me playing at a local playground with a big smile on my face, which is usually something i don't do at all considering the situation.
Jack is one of the few strains i will say is worth the wait and worth the price.