I am working to improve the rolling characteristic of my HW sleepers built from Branchline Trains kits. I have rebuilt the first ones I did to insure they were square and did not bind the wheels. I have modified the bolsters and cut the center sills to allow for an adequate truck swing. I run  these cars on the club layout which uses primarily PECO track and turnouts( code 83).

My next step is to replace the wheel sets that came with the kit.  I am considering Reboxx (.088). Any advise on this? Any suggestions?   Thanks for the ideas.