I love this developer. It's been my preferred liquid for about 4-5 years now. But, just out of habit most likely, after a couple of days of printing, I just toss it, and mix it fresh. Or even fresh for each session. I learned a long time ago, there's no need to be frugal when it comes to investing in the time/paper spent printing for hours on end, by re-using developer.
Also, I use both Fotokemika, and Foma fiber papers (love Foma 542), with it, and they always come out beautiful.
Reusing the developer with replenishment is not a choice in frugality. It's a choice of liking the results better. Leftover bromides and other processing byproducts are, in my world good for the print.
You may or may not agree.
"Often moments come looking for us". - Robert Frank
"Make good art!" - Neil Gaiman
"...the heart and mind are the true lens of the camera". - Yousuf Karsh