Has anyone done this? I bought a bait drop device for my solo. It's simply a servo mounted in a 3-D printed plastic housing that mounts on the under side to the drone. The instructions say to solder the signal wire to pin #19 on the Solo board, and the plus and minus leads to the 5V +, and any ground, respectively. This enables you to use the pause button to activate the servo...it suggests that the rewind feature be disabled first. It only works sporadically at best. It works with the original solo firmware (supposedly) but I have upgraded to Open Solo...could this be the problem?