Hi drpaul
We did 5-6 90 min sessions a week last year, the trouble was getting at least 3 exposures to each set per week.
Odd weeks
Mon/Wed/Fri:Some 25 Dives and then 200RP for all strokes
Tue/Thur/Sat:Turns and 100RP for all strokes
Even weeks
Mon/Wed/Fri:Dives and 100RP for all strokes
Tue/Thur/Sat:Turns and 200RP for all strokes
For 100RP it was mostly 25 repeats until they were completing most of the set and then the next attempt I would set 50’s, likewise for 200RP except 50’s were most common and 75’s were the harder repeat.