Traditionally speaking, a grisette was a sacch only beer anyway, so the use of brett would make it a saison by default if you were actually worried about authentic classification. In this day and age of bastardized childrens beers, this may not matter to as many as it would have in the past.
I am not familiar with TILT, but I can speak to a new gadget we got at the brewery that will render your hydrometer mostly useless. Check out the EasyDens from Anton Parr. It's a hell of a device and basically is a full fledged DMA meter offloaded to a small case and you use the electronics in your phone via bluetooth connection to complete the package. We got ours from Morebeer for 325 shipped, which may be a bit heavy for cost sensitive homebrewers, but if this was around when I was at my peak of homebrewing activity, I would have thrown down immediately. I spent more than this on an electronic refractometer that turned out to be a piece of dogshit.
The Anton Parr density meters are world class as we use one at TA48 for analytical work that will actually see publication and costs around 20K. The EasyDens is basically this same device without all the bells and whistles you need for publishable data. I bet Warren will be all over this.
Price has gone up since we got ours it seems. Regardless, this device is a nice addition to your arsenal, and can complement your tool set, as can the TILT it seems. It's a hell of a time to be a homebrewer, at least in terms of toys.
Congrats to all for their new positions in the club. Keep the traditions proud!
Cheers,
John