I left steel core flip lines with a micro grab few years ago and went onto a ce lanyard with ocean poly hitch cord. It's a great system and very slick, easy to use though pricey. Once it wore out I didn't want to buy another so I just started using old climb lines. I didn't like the aluminum biner on the end of the ce lanyard so I cut a steel one off an old steel core and put that on my rope lanyard together with some beeline in a VT and a dmm pulley. Works great and is very cheap. It doesn't last forever, but I've got enough old short climb lines kicking around that it's effectively free. Makes me feel a lot better shot ditching it early too, like if it gets all messed up with pitch or whatever.