I'm doing that now. I'm 8-9 months post relaxer, and I haven't done a BC yet. I may do one when I reach the one year mark, but so far, I'm trying to keep it.
I've been doing trims, and just did a 3-4 inch cut. I will probably do another cut like that in June/July. I went from BSL to APL in back and shoulder/collarbone in front.
I know it's possible to avoid a BC, but I think the pattern of your hair will set better once you are fully natural.