Trying out on a test board is really hard to tell.
For instance, when i got my topre board the other day i was like : ffs, this is mushy, **** rubber domes. But now im like, damn, this is really better than i thought !
But blacks might be heavy for you. I know I like to feel, and go without too much effort. Havent tried out blacks yet, but reds/browns and 45g topres are just perfect for me

Edit : sorry kinda intoxicated here, good belgian beer got me. What i want to say is that you really need to try out the board before making a decision. Trying it out, as in typing during quite an extended period of time.
For instance, I find my topre board too light on the space. I press it without realizing i am pressing it.
I find blues a bit too heavy for me, so browns or reds seemed better but without the tactile feedback.