I have used the Ren's on a 1967 Rogers,they were decent sounding,a little wetter than coated ambs and a tad mellower,not bad,but not mellow and warm as an earthtone head,and I have heard they work well at higher tensions on vintage drums,but I preferred coated ambs on that kit.
I put the ren,s on a thick shelled birch Eames kit and loved them on it.
Sometimes you just have to try one of as many heads as you can on a kit,you just never know.