I would say this isn't that bad of an idea if you only expect it to break the spring free and not to replace it. Also you'd have to beef up that chain and end link, probably put a plate in there too before I'd get anywhere close to that. It seems to me that the extension could ruin the vinyl coating on the spring, ruining the spring in the long run. Nice adaptation but I think I'll be sending R Leo an email when that time approaches.
