Next time I change my x20 strings I am going to see if any of the bridge pins I have in my parts bin are useful as a temporary holder, maybe try a capo too. Of course shaping the string end into a j-hook is part of the process that helps.
I still see a nice set of locking Gotoh 510s in the future.
I have to say this pinless bridge is not all that far off from stringing up a pin bridge with a platemate installed (and no pins).
https://img1.stewmac.com/product/ima...plate-mate.jpg