At my two local shops one had the little tabs and one had the big tabs. I've used the big tabs for my last two batches and really like them compared to mixing in priming sugar. Sure I can't control the level of carbonation, but I like having a consistent amount of priming sugar in each bottle. I'm interested in knowing how the smaller ones work out. I had read about them causing clarity issues, so I've avoided them, but I think being able to dial up/down carbonation with them sounds great.