Brown is identical to blue, in actuation. The only difference is the click that Blue has.
However, and correct me if I'm wrong, Red has a lighter force required to actuate, and may be your ticket, but since it's linear, there's no feedback on when it actuates, and you'll find yourself bottoming out the keys, which could be harder on your fingers in the end.
Between brown and red, it'll be personal preference, I'd say try the browns for a couple months, try out reds and see if it's easier on you.