I've found this a few times. I find a new hairdresser, during the first few cuts they take ages cutting and checking and I have a cut that is both flattering and technically great, but at some point (usually in the first year) they start taking a bit less care... I've longish wavy hair that is layered and the difference between a great cut and a not great cut is apparent after the first wash. It's not the easiest hair and I get the owner or someone at a similar hair to cut my hair, so am paying the top level for that particular salon. Does anyone else find this too? I've returned to a few hairdressers after duff cuts (including once when it was obvious they'd missed layering one side, it was laughably uneven) and they're always helpful.