In your videos I always see you using SW 950A is there a specific reason you do not use the 850A for this purpose being that it is cheaper in price? My local SW manager told me he sales more of the 850A what is the difference I knew you would have a good reason why to use one versus the other thank you Chris have a blessed weekend. Dont want to complicate things. Just want to keep one caulking for everything in the van.
