I just wanted to throw out there that the Lord Field line has to be one of the best lines for changing surfaces. Of all the balls I have (Korrupt, Torment, Exodus Pearl, Heritage, Judgement, Jacked) I have changed the surface on each one of them multiple times and they matched up quite well and as expected on the conditions I needed. I have had experiences in the past where balls were so shot/surface specific, but I have had nothing but luck so far with changing surfaces to meet my individual lane needs. Keep it up guys!