I've always like the capabilities of the CTEK D250SE, and was surprised to see that they have a setting for LiFeP04!
My only concern is minor - the nominal voltage for the CTEK LFP setting is 14.2v. That's fine, although I'm not absolutely sure the internal bms of the Battle Born itself will do any balance functions if needed at that voltage (14.2v = 3.55v / cell), say on a brand new BB batt that has never seen a charger to take them up to 14.4/14.6 maybe - at least once as a one-time event just to make sure the balance bleeders in the BB tighten up any small possible out-of-the-box balance.
Not trying to make a mountain out of a molehill here. I'd have to ask BB if their bms' internal balance function will actually take place if someone uses only 14.2v as the Ctek does. Either that, or just hit it up once with an external charger that will go up to 14.6v - at least once.
See what I'm saying? Nothing crucial, but curious.