Trips, I had one with both and what happens is that when you do the one for upright brushes you have very little material left on the sides. When the hole was put in there the material mushroomed out thus causing more work because you have to bring it back into specifications. So we have eliminated it, however that can be changed if there is enough demand.
Another reason why we did that was that the new Reedy Modified motors due out sometime this spring will have laydown brushes. The com will also be bigger than what we are used to seeing on today's motors. With the bigger com you will not have to worry about the brush wrap like you do with the Trinity motors. That is one of the reasons why you see people triming the sides of the brushes when they run an Epic can.