Lots of people really like the H&G #68 mold, and I have two of them. In the past, there were a lot of positive shooter comments about the H&G #130. The only negative comment I ever heard about the 130 was that the holes it cut were not as distinct as those cut by the 68. The bearing surface seems longer in the pictures I have seen of the 130. The gunsmith who put together my 1911 wadgun recommended the 130.
I believe I would like a flat base. I am interested in others comments.