Sensible, I have been doing same for years, almost there on the movement from 401k to roth. The DIMS are so evil and conniving they may very well go after the roths along with the 401ks.
I wouldn't even trust them with ordinary savings accounts. I've made a great deal of movement towards a cash-based investment, though I should have done so much earlier. Too many irons in the fire over the last 2 years or I would most certainly have been about 80% cash by the spring of this year.