I'd sugget reducing the time to complete the missions in Sothis et al to less than 1 hour - like the courier missions already are (40-50 mins).
That way you simply can't stack as many and have to do the return run more often. Solves mode swicthing advantage also.
I managed to stack 2 courier missions and 1 smuggling mission from Sothis with time scales of less than 45 minutes for the courier missions. It also adds an extra element to the mission - getting there quick and not stopping to fight etc.
That way you simply can't stack as many and have to do the return run more often. Solves mode swicthing advantage also.
I managed to stack 2 courier missions and 1 smuggling mission from Sothis with time scales of less than 45 minutes for the courier missions. It also adds an extra element to the mission - getting there quick and not stopping to fight etc.