I'd go for this... But increase balls bowled in a day by
1/ either increasing to 7 ball overs or
2/ increasing to 110 overs a day (still less than a 9 hour day that many of us work and with proper breaks)
Otherwise one day of rain means pointless turning up.
318 overs is the average result in the 21st century ... Only 13 out of 39 Tests this year have gone to the 5th day ... only 4 draws !!!!!!!! All rain affected ... !!!!!!!