I've used the 3006 tank, and it was good, but now I use the 2509N reels and like them just as much. With the reels, I can do up to 12 sheets at a time, but the 3006 limited me to six sheets at once. I have also bought from the eBay seller you used. He shipped quickly and the stuff really was new, but it differed from some of the older stuff I had, which made me think either I had really old stuff, or the new stuff wasn't made by Jobo, but a rather a copy. Either way, they are nice and work great.