Locomotive Wheel Cleaning

Rokuhan has a cleaning device ; I bought mine in the past, when Rokuhan didn't yet re-sell it (found on the bay) ... And I saw on this forum that a club (BazBoyz ? ) used it too.

So the AZL starter set rolling stock I took the metal wheels from
two of the three rolling stock it comes with (8 axels) 
I also took the metal wheels from a Full Throttle car 4 axels 

And went ahead and transfered out the plastic wheels for 
the metal wheels. 

It seems all the metal wheels are a smidge bigger
at the tip that sets into the truck. 


As normally you can tap a car on the rails it will 
roll a few inches before coming to a stop. 


Once the metal wheels were onto the cars I transfered them to 
with a tap they barely move
Or when placing a finger on top of the say boxcar
you can feel a resistance. 


They do roll it is not that they don't roll
they aren't rolling the way the plastic wheels do. 


As in with the plastic wheels a Locomotive can take many cars. 

It seems with the extra strain on the locomotives I would be limited to many fewer cars
to the amount of cars the Locomotives can pull. Also with the excess strain 
probably isn't good for the Locomotives

I've done the transfer to more than 5 cars thinking it might have been 
only a couple of those cars I transfered to, but all of them are the same &
would cause more strain upon the Locomotives. 


So if this is the way it is I may just stay with the plastic wheels 
And do a twice a month locomotive wheel cleaning instead of 
spending many hundreds of dollars to replace all the wheels on my rolling stock I use
if this is the performance I get from them once equipped with the metal wheels. 


As kinda new I also don't want to attempt a entire truck change. 
(it is not a small screw but it seems a complicated undertaking) 
It seems that that may be the only solution if I want the metal wheels 
+ where the wheels transferring would be hundreds a truck transfer
of all my rolling stock would be into the thousands. 


Has anybody else had this happen when
transferring out plastic to metal wheels ? 


Have a wonderful day everyone and a great week too 

James Ian