Hey everyone, I just bought a 100 lb Everlast bag (for $20 on Craigslist, lol) and was wondering if this setup sounds stable. I am planning to set the bag up in my garage. I will drill a hole into one of the garage rafters and insert an eye bolt. I will then attach a heavy bag spring to the eyebolt, with the bag's swivel chain connected to the spring. So it will look something like this: ceiling rafter > eye bolt > heavy bag spring > swivel chain > 100 lb bag. What do you guys think of this setup? Will the bag be supported by a single ceiling rafter, or is extra support required? How much does a swivel chain and a heavy bag spring actually reduce tension on the ceiling? My main concern here is the garage roof, and not the bag, haha.