Rollei Pan 25 is NOT Agfapan 25 nor Agfa APX 25. Get over it. It's not an urban myth -- it's a lie. I've used Agfapan 25 for the last 30 years from 4x5 to submini. Rollei Pan 25 is NOT the same stuff. The best alternative I've found is GIGABIT 25. It's made in GErmany, not cheap, and it is not sold in the USA -- at least not in 4x5 -- but it has the same straight CI line as APX -- developed in THEIR developer (which comes with the film).
I shoot GIGABIT 25 4x5 at ISO 12 -- just like Agfapan 25 -- but my freezer is full of APX 25 in the 35mm size, so I'm all set in that format. If GIGABIT is not an alternative for you, I suggest Ilford Delta 100.
Let's stop this silliness. APX 25 is dead, long dead, much to my sorrow. Get over it.