My P238HD is loaded and chambered with RA380T, with a spare mag of the same. I'm perfectly content and see no reason to throw a couple FMJs in the mix.
The .380acp Ranger-T is fairly well regarded and has a good chance of expanding into a talon-studded copper and lead flower of harm. From the informal tests I've seen, it seems to be a solid performer. However, with .380acp velocities, there's also a chance of partial expansion (or none at all). In such a case, you'd have the performance similar to a FMJ-FP.
So, if you go in knowing that there's a possibility some of your expensive JHPs will perform similar to FMJ-FP after failing to expand, it might ebb your inclination to stagger your magazines. Just a thought.