Speed Pro H116CP pistons drop in with no rebalance?

I just installed 2 sets . 1st - 1988 la roller block cut .010" pistons down .004" , 2nd 1977 - 360 block light clean up cut .002"-.003" pistons down .014" . Both sets were within 5 grams from stock , and compression with stockish 360 heads and felpro 1008 came in at 9.6 - 9.7 to 1