As much as I like Simpsons brushes, their inconsistencies has turned me off from buying any more. I currently have 3 M7 Platinum, the faux Ivory and Tortoise are my favourites but when I ordered the butterscotch it was so scritchy that I don't even use it. I reached out to them and their response was that they don't have control over the materials they receive so the current batch was not the same as the previous one. I also enjoy using the T2 but not as often the the M7s. Before switching completely to synthetic I mostly use Simpson badger brushes and I was okay with the inconsistencies with badger hairs since they are natural products but I didn't expect it from synthetic fibres.