YOUR heifers have done well ,what is the name of Troubador son .....Proven calving ease bull. have some Northern Gun semen would give you ,if you wanted to pay shipping... He works fairly well on X- bred heifers ,might have to assist some ,X bred heifers are unpredictable some time with their genetics ....We use NG & Final answer, Sitz Dash, V D A R REALLY WINDY 4097 AND C C A EMBLAZON 702 and these bulls happen to be mostly Accelerated bulls ..........