I have sprayed both the SW and Mohawk for over 20 years. They both have their pros and cons.
On the Mohawk side, the best advice is to apply the EZ-Vinyl Sealer (M610-8007), which builds faster than two coats of top coat. It has a medium 30 sheen so it's great for Flat or Satin sheens.
Pre-Cat means that the catalyst is added at the factory at the time of pouring. The plus side is that oxygen is used to start the crosslinking process.
Unopened cans have a longer shelf life. (up to 3 years) Shelf rotation is noted on the can in a Best If Used By Date.
If you're in North Carolina, I recommend getting the M614 formula, it's the old-school conventional (before VOCs were a crime), and it lays down, sprays in almost any condition, and cures in 24 hours. It is terrific if your back is against the wall getting something done and out the door.
The plus side is that it's been made here in North Carolina for over 20 years. The factory has been here longer, making finishes for several furniture companies.
The SW has several options. First as stated above, not all SW carry lacquer products. You have to find one that does.
T77 F38, or the newest version of Dull Rubbed Effect, has been a long-running product line. Gives a nice matte-to-flat look and smooth feel.
T67F6 is the sealer, and does a great job. Highly recommend if tinting is required.
T77W20 is my favorite for pure white UV stable lacquer without top coat needed.
One thing to note is that I do not add the catalyst at the store. I don't add their catalyst at anytime.
I didn't find any significant benefits of adding the catalyst when recommended, or when used incorrectly with products that weren't catalyzed. (IE catalyzed sealer has to be used under catalyzed top coat per SW)
If you're not careful, the SW has more xylene in the formula, so it runs and sags on overlaps much easier than other lacquer.
@craftbeerguy The temperature wasn't the factor, it was the white vinyl sealer. Should use M6108007 then M6101067 for high moisture areas. I warm up my pieces in the shop with a wood stove, take them outside to spray in 30 degree weather, once flashed, bring them back in to bake and offgas. never had an adhesion issue doing this.