Yes unfortunately even a switch tester, while I encourage their use, has the limitation of not knowing what an entire board of the switch is like.
I am not a fan of Browns personally, but I do very much like Clears. The difference is in the size of the tactile bump and the spring weights. Clears are a larger bump, more tactile feedback, and a harder spring so more force required to type.
I find Browns too soft and not tactile enough, very similar to reds in my opinion, the same spring weight as reds and some annoying bumpyness. I much prefer a definite tactile bump on the Clears of Greys or pure linear on Blacks and Greys (yes grey is twice they have two very slightly different shades, I always forget which way round for which switch). Although at this stage all my switches are spring swapped to different weights so I have no direct stock comparison for what I use.