I bought the Feast & Watson one because the Minwax disappeared from the shelves (and it was much cheaper than F&W!). I have been using the F&W now on my SoS and I can't see any difference between the two (other than seeing red because of the price of it...). The first coat on SoS was still the old Minwax, but then (after much of it had been sanded off) as I wanted to apply the next coat I realized that it went thick and could not be used. Then I went to Mitre 10 when I bought the Minwax a while ago. There was nothing, so I went to Bunnings where I found the Feast and Watson for $33. As I applied the first coat of it, partially on top of the Minwax cote, nothing happened, they did not start fighting each other. Lucky I assume...
Actually I wanted to be 'clever' and as I opened the Minwax bottle I filled half of it into a separate container and sealed it, hoping that I can use it further than what was going to be opened-closed frequently. It did not work, it thickened up the same time as that one in the original bottle, which I was frequently opening. I imagine that the original bottle must have been filled up with Nitrogen or something similar to avoid contact with Oxygen.
Janos