Yes, I and others find a day before opener as a good option (note, this is not a “warm-up” on the same day right before the Ramp).
It gets me ready to hurt for the following day, especially when you consider that the Ramp test is most often scheduled after a recovery week and even a full day off. That may work for some, but many find it too much of a shock, so an opener is helpful in prep.
I like Truuli -1, but here is the main Opener thread with more options: