In our home studio, Kara works only soft glass, and I'm pretty much boro only. When we work together, we set the kiln for soft glass and we both share the kiln. Once the cycle is complete, I just leave the boro in the kiln until my next solo session, or run a batch anneal program when it's convenient. As we anneal our soft glass at 970 (your kiln may vary!), and boro's strain point is around 950, at least SOME strain relief happens in the boro.
So I would say you can do it...kinda, but run a boro cycle afterward just in case.
I guess that's why the short answer is "no" (LOL!)