7-simul flip: better pin orders with lower memo?

[mingus]

Hi all, I recently switched to 7sf2dm2lm from Flip a couple weeks ago and I average like sub-15 with it. I like this method, but the D moves make it slightly unattractive to me. I know 7sfndm4lm exists but I couldn't find a written tutorial or any actual tutorial for it. I asked about it in the clock solvers discord and I was told that:

• 7sfndm4lm doesn't really have 4-letter memo, it has 5.
• It also isn't really good

Does 7sfndm with 4 letter memo actually exist? If not, are there pin orders that allow for both low memo count and no D moves?

Thanks