Any tips on this successfully? 
I gave up, if she wants to keep her money in cash-like accounts, so be it. (No joint anything, everything split and it works well for us over many years). My strategy is to focus efforts at a good time, like house purchase that’s driven by her, to re-attempt again on any joint strategy.
Side note - I believe you are part of the moderating group and thanks for your time and effort on this! Very appreciated.
I believe the UPRO/TMF approach is as per this thread Thoughts about Hedgefundie's adventure? . Really interesting read to consider, I wonder how it would fare in a prolonged correction (18-36mo) however.