Best PCD for TR-Soloing

Looking for some input on progress capture devices for top rope soloing that could also be useful for simul climbing. I’m looking at the Micro Traxion, Camp USA SOB, and GriGri. I know the main drawbacks and advantages to each of these but want to hear about people who have experience with these devices in these applications or have recommendations for other devices I should look into. Thanks. 

Check out the Kong Duck.  

This uAscend device by Grandwall is pretty cool and affordable. It's toothless, same design as the Ushba.

I use the petzel  micro ascender

I currently use a CT roll n lock and a micro trax combo.  I love how smooth they both feed but the roll n lock doesn't always engage my 11.4mm rope.  

Petzl rescue ascender. Toothless so it doesn’t chew up the rope. Micro traxion as a backup. 

Microtrax, primary + secondary.  Petzl recommends against using traxions for both, but I believe it is better to have one device fully dialed than to worry about two different devices.  Don't worry about teeth on your primary device.  Your sheath will be fine.  I have hundreds of TR solo pitches with lots of falls on my current rope, and not a bit of fuzz to speak of.