There was no great source of information for the best auto-reverse module to use with ESU. While I found several were to known to work well, there was no recommendations that would help pick the right one. SO I ended up testing several of them.
Starting with a basic MRC auto-reverse module, which worked well, by the way, I was bothered by the sparking and the damage it would eventually cause to the wheels and tracks.
The Lenz LK100 is also relay-based and works well less sparking but I was looking for a solid-state solution.
The Digitrax BPAX1 works flawlessly - but like any detector that draws current, it does trip the occupancy detector. Now for loconet users, there is built-in transponding capability in the reversal circuit, but since I am using the ESU system, there is no RailCom output from the reversing loop.
I tried the Digikjies BR5013 which is a very advanced module, (and according to post on the ESU forum does not trip the occupancy detector) - when used in a true reversing loop setup, unfortunately on a turntable bridge there is no possibility of that whatsoever. Thus using it in its current sensing mode like the BPAX-1, it actually underwhelmed me, with its erratic performance and sensing speed, which are not adjustable, or at least the manual is not helpful in this regard. It also triggered the occupancy detector. I wish I could tweak its performance since it transmits Railcom over the Loconet and I can try to connect to the ESU thru the L Net adapter getting rid of false occupancy as well as identify the locomotive on the bridge.
But that is a weekend task!