I've used XTOL replenished in a Patterson small tank for quite a few years without any problems. I store fresh in full 500ml bottles and it lasts for ages. I keep replenished XTOL in full 500ml bottles, filter through paper and add 80ml fresh developer for each film. 12 minutes for a single roll of FP4+ in 300ml XYOLR at 20 degrees. Lots of discussion on the site about using XTOLR for quality but it's cheaper too.