OK if the above is true, can somebody explain why all my NON KA loco's wheels stay just as clean as the KA loco's wheels.
Only 10 0f my 50 locos have KA. 8 are DCCconcepts decoders with KA. 2 are Lenz gold with USP KA's
Since going DCC , 18+ yrs ago) my track, loco wheels & rolling stock wheels stay cleaner longer than yrs op DC.
BTW, my layout is in an unlined tin shed and as I said now that I use Track Magic my track is cleaned every 4-5 months whether it needs it or not.
Before TM I used Iso alcohol & cleaned track 6-8 weeks.
Rarely clean loco wheels. Can't remember when I last cleaned R-stock wheels.
Oh yes, all my locos steam & diesel do 2-3 MPH on speed step 1 using 28st (personal choice) thru electronic speed trap.
OH dear, after all this my head hurts I need a Bex and a lie down.
Your results are consistent with my results as it is hard to see a see an improvement when you already have decreased arcing significantly by having models with good pickup, use an oil that makes the dirt conductive, and stops the wheels and track from oxidizing.
The speed step 1 was only an experimental method to compare the improvement in smooth low speed running between keep alive and non keep alive models.
I use 128 step mode, and only use the push buttons on my NCE controller with lots of inertia for prototypical acceleration and braking. Typically I use the fast buttons which increase the speed by 10 steps, resulting in 13 pushes to get from 0 to full speed. When shunting, I can use the 1 step push button to slacken the coupler to take up slack when stopped, or position the train very accurately without changing the inertia setting. Most people I know do not use the push buttons for speed control, but that is one advantage of DCC, you have flexibility to set things up the way you like.