Got it installed,
For anyone looking to do this, I suggest taking the advice of the forum and waiting atleast 12 hours/overnight to allow ample time for ALL of the coolant to drain back enough so that you lose only the half cup to 3/4 cup stored at the actual thermostat housing/behind the stat.
I only waited about 6.5 hours, and still had a decent amount of coolant in the line going to the housing. Due to trying to postition it out of the way, I managed to kink the line and lose about 2 cups worth of coolant.
As such, I had to add some coolant (I had a gallon on hand just in case), and since I had the concentrate tried my best to get a 50/50 mix. However, on the last two small top offs of the burping process, I just added straight distilled water. so the mix will be close to 50/50 but a bit closer to 45/55 as it gets hot here in the summer, and does not get drastically cold in winter.
Since my parents live in florida and the car will see a decent amount of time there, as well as its next drag strip test and tune, this will help a bit as well.
So far I am loving the stat. I have not changed the tune for it yet (AJP will send one when he gets the chance, I sprung it on him last minute), but even with the tune not changed, the car runs cooler, and I did not see a coolant temperature above 190 at all.
Overall I give the Reische part a 5 star rating, which will probably become 6 or 7 star once im tuned for it. Installation I would say is a 2/10 in difficulty, as it is super easy to do, but the burping process/potential to make a mess if you don't wait long enough is a bit of a pain.