Clearly there is a need for a large safe standing area in the centre of the Devonport End. The culture of support in that area is not going to change, even if a throwaway segment of rail seats is hidden away in the corner of the ground.
If Wolves and Spurs can move to install rail seats whilst Premier league clubs then I would hope Argyle, who have rubbed standing fans up the wrong way in recent times, can move to build bridges quickly.
Ironically that whole flash point seems to have simmered down since a safety certificate has been issued for the Mayflower with the pre-match warnings disappearing.
I recently noticed Shrewsbury had installed safe standing across the back 5 or 6 rows of their home end. It worked really well from what I could see, with no lines of sight disturbed by standing fans. I would be tempted to go further if I was a decision maker at home park and convert the upper 50% of the Devonport End to rail seating based on the number of supporters who stand in that area.
I also don't think the club should wait for increased attendances. If rail seating is safer for sections of the crowd that prefer standing then its safer, end of discussion, regardless of whether the rest of the ground is full or not.
I say all the above as someone who now prefers to mostly remain seated at Home Park