Below is another extract from my upcoming book on top rope soloing (TR soloing) called On the Line. Before you can pick the best tool on the market, you need to know what the best tool would do. Here are the key features you want in a device: A: Safeguard the user if they fall while climbing.
Totally agree that there is no perfect device. Ultimately it will depend upon one’s purposes and priorities. In regards to your point “K” above, I’ve found that there is another alternative to the TAZ Lov. That is the Trango Vergo but only when set-up correctly and paired with the right rope (something around 9.5). I’ve been using it interchangeable with the Lov2 for a couple years and have described it here: https://sicgrips.blogspot.com/2020/08/vergo-for-top-rope-soloing.html
Andy - long time ago but are you still planning on releasing the TR soloing book? I’m guessing Kid B has delayed process?
What is the projected completion date of your book? Looking forward to it.