I find them a fairly useful measure of recency and have adopted them in my electronic logbook - it flags to me that I need to take care if I drop below 3 hrs in 28 days, or 10hrs in 90 days (my choice of values, which seem about right) and at that point I'll at the very least go and spend some time either on my own or with a friendly grownup refreshing the usual basics of circuits, PFLs, stall recoveries, check fluency, RT and the like. I really should do the same with instrument flying like Jon does as well.
I really hope Andrew that you're playing devil's advocate here as at 211 days out of recency I'd be looking to refresh on the manuals and checks, and probably spend some quality time with an instructor. Mind you, I've only got a couple of thousand hours and a CPL - you may have a lot more experience and training than me and not need to be as cautious as myself and Jon.
G