RetM, the percentage of goaltender minutes played last season for returning goalies divided by those of all goalies, is about the best indicator you�re going to see for experience in net. Note that virtually every team in the ECAC returns its principal netminders:
Team Ret All RetG Clarkson 2218 2218 1.000 Colgate 1996 1996 1.000 Harvard 1926 1926 1.000 Princeton 2070 2070 1.000 RPI 2179 2179 1.000 Union 2053 2053 1.000 Dartmouth 1429 1748 .818 Brown 1256 1750 .718 Cornell 1475 2153 .685 Yale 1204 1943 .620 St. Lawrence 462 2134 .216 Vermont 16 2174 .009