I'm thinking a game is being played upon the "suspended part. I'll bet dollars to doughnuts someone figured out that by commencing the pension, then suspending it locks the then current rules into effect for the life of the pension. Dunno if that is illegal but if so, then there are conspiracy charges galore.
I don't think you quite understand the Wisconsin Public Employees pension system. Commencing a pension, then suspending it has no effect on other contractual benefits, like medical insurance. The insurance plans are a contractual benefit, the pension is administered by the Wisconsin Retirement System which is a state agency and it's rules are not determined by union contract or school board policy. In a way it's like Social Security except that it is funded by an actual trust fund with no "monkey business" IOU's. The only way to "double dip" would be to retire, start receiving you pension, then hire into an out of state position. If you rehire into a Wisconsin teaching position, the pension stops regardless of where in the state you find employment. School district doesn't matter as pension is a state wide benefit, administered by a state agency.
As long as this thread is pointing out who is "double dipping", military pensions are generous and allow you to work a civilian job after retiring from service. What do people think about that?
Regards,
GtG
PS I think you could also take a teaching position with an "in state" private/religious school and continue to receive a pension.