Interchanging USPC 45 barrell with USPCT 45 barrell

[dano1200r]

Any thoughts on A to B, and B to A.
O-ring concern when USPCT run in USPC.
Chafing concern running USPC in USPCT.
Experienced opinions appreciated.

[Big Bore]

Try the search, this has been answered dozens of times.
Direct replacement.
Make sure barrel opening in slide is free of burrs.
Check with cotton ball inside and out.
If burrs are present, polish with nothing more coarse than crocus cloth. No power tools.
http://img.photobucket.com/albums/v318/BiggBore/Compact%20JF/CT-45-2W.jpg