i was going to try sherman but never did. i have used goodmark and amd. i have had a little better experience with amd fitting a little better. but have had both brands need some work to be correct at times.
i just ordered from goodmark again and it was a shaker ring. the studs were hollow and snapped off before i got them even tight. they did shop me a new one for free though, i went through vince at Muscle Car Pit Stop in PA. he has always treated me good