Steel gravel frame for NY state

This steel frame is all Columbus Zona and it will be set up with Sram-hence the UDH. So far I have only built four frames with this new dropout standard but there seems to be momentum gathering for its use. 
 

Hard to say if the older style dropouts will die out but I sure hope not- there's lots of people using other parts who won't necessarily get on the Sram train. I thought that the UDH was just an MTB feature but this shop asked for it on a gravel rig so here it is in all its glory. I hope that the customer likes it.