1 hour (Stand developed) at 18°C/64.4°F
Soak @ 18C water for > 3 mins.
Slow & gentle inversions for 1 min.
Invert @ 30m to avoid streaks but may be better to invert very very gently at 20 and 40 mins if room temperature is hot.
keep tank in water bath @ 18C to avoid thermals
Note: Pushing film, this will work for up to a 2 stop push with no change in development time or technique.