Yeah, the same problem here, he he. I know it's not the cheapest device. I am using old Jerry's slack-bananas and prototypes from slackPro! You should send Jerry a message and ask if he has the old ones. You could probably get 2 of them in the price of one AWL

I just thought about one thing - if you are searching for the cheapest solution you could buy just one slack-banana and use sleeved line-locker (Terry has the best configuration I saw ever, but you can get them on-line from Jerry's shop too). This way you have really strong way to attach your line and be able to remove the slack from one side ...

You don't always need 2 slack-bananas. One of them will make the rigging much easier though. The only situation when you really need 2 is when you put up the highline rigged with 2 webbings ... I'm hoping it helps.