If that call works I think I may have a chance. I'm going to try to locate, sneak in close with low soft cow calls and then light em up with with a cow in estrus/bugle sequence.
Last year my partner kept stepping on this herd bulls bugle (bugling before the end of the bulls sequence) WOW! Did that piss him off. Came snorting/thrashing/pawing in to about 20 yards then sat in reprod with only his antlers showing. Then turned around and lef tthe same way he came in without ever giving us a good look at his vitals. Was pretty impressive though.