The seal is a really easy process that gets a bad rap around here. Once out there I really understood it. Don't want to see the place get trashed with invasive species like so many other lakes in CT/MA/RI. There is little/no vegetation in the place, fish and wildlife are fat and healthy, just prime. Bring it to a car wash up in Athol (they have 2 wash days per month) and they have a decon process. Then it is wired to your trailer any time you are not in the Quabbin. If you want to put it in another lake you have to cut the wire, go where ever, then have it decontaminated all again.
It's like a $40 season pass in my book. As close to being in the wilderness in Mass as you can come, bears and cubs walking the shore, deer and moose swimming across it, loons everywhere, bald eagles dive bombing the water for trout. Feels like a lake in the middle of Maine most times and you might see 2-3 other boats all day during the week.