I rotate between BS, MX Blue, and MX Red. I find that going between the blues and bs isn't much of an adjustment at all. Going from either of those to the reds there is a bit longer of an adjustment period but is still pretty negligible.
Ultimately for me it doesn't matter what I'm typing on my speeds are pretty close to the same, well, except for the horrible bluetooth board I use in the living room that has scissor switches. I think my wpm drops to like 12 on that pos.
Overall I enjoy the different switches. Like music, I feel each switch type goes with a mood. Sometimes I want to rock out, BS. Sometimes I just want to jam, blues, and others I just want to cruise easy, reds. I have plans for many more switch types to expand on this.