I confirmed tonight that this formula works. I used the triethanolamine version and developed 35mm Fomapan 200 (Arista.EDU Ultra 200, exposed at EI 160 in my Yashica GSN) for 6 mins at 20C (the recommended time for stock XTOL). Continuous agitation for the first minute, four inversions per minute thereafter.

The results are quite nice. There is a lot of shadow detail, but 6' may be a tad too long. The real proof of the pudding, of course, will be in the printing/scanning.