I had a Jack Herrer that ended up being discontinued because it lost it's potency. At the moment, I have a couple of cuts of an outdoor plant that started producing 3 fingered leaves and never reverted back. I had the Jack and Purple Diesel do that as well and the leaves were much longer than the original plant. It didn't effect the potency at all but it sure got attention. I reversed the Purp D with the 3 fingerd leaves to collect pollen and dusted the same plant. The resulting seeds produced normal plants.