I can compare results for two men at present. First man has 17 unnamed variants listed, 7 of which appear in second man's list of unnamed variants. Second man has 15 unnamed variants, 8 of which do not appear in the list for first man. Position numbers for these unnamed variants do not correspond to position numbers for unique variants given under the old system. If I try the match tab for #2 , I see nine non-matching variants listed for #1--two are named; six of the seven appear as non-matching variants for #1, and the seventh appears in the list of unnamed variants for #2. So that part makes sense. However, #1 also has six unnamed variants not shared by #2 which do not appear in #2's non-matching list, and #2 has seven unnamed variants not shared by #1 which do not appear in his non-matching list. What should I conclude about these six variants in #1's list and the seven variants in #2's list? And what about the fact that position numbers under the new system differ from position numbers under the old reporting system? Lindsey