I developed my first roll of PX in Agfa 17, and 11-12 minutes at 20ºC seem correct.(posted 8189 days ago)Ed, your times for Efke films in Rodinal are too long as well...
This is my times for Rodinal 1+50 at 20ºC
Efke 25 4-4½ min Efke 50 4½ min Efke 100 5 - 5½ min