Not an easy one. When it happened to me, it never entered my head to refuse the offender from not playing and fortunately it worked out, but for others, it may not be the same outcome.They are usually a last resort, seems a little early to be in that category, especially as we haven't had an especially bad winter. It is correct that someone sent off in the first game can play in the second, which is far from ideal. I would say though if someone is sent off for serious VC you suggest to their manager that it would be a really bad idea him playing in the second game. You can't enforce it, but equally I think most appointments officers would back you if you refused to referee the second game if they didn't stand him down.
The only benefit for the referee is the fee, you usually get extra money for not a lot of extra work, unlike a cup game that goes to extra time.
As to fee, I can see that there is a benefit with a double game, though i would still hope that fee is not high on the agenda.

