I just learned about this darn method today and it's been working great!!! I do it a little different and want to know if you could explain why it's better to do your way. I have the CP saved. I kill all 3 statues, popping a 3oC between each one and then I return to orbit before mission finishes. I kill all three even if I get an exotic engram from the first or second and usually go right back in with same character. Does that give me a lower drop rate or is there some other benefit to leaving after I get an exotic and switching?

He always been a good farming ultra no one cared about 3 of coins till now lol

Just wondering why would you switch characters instead of just going to orbit and go back, I do this same thing with draksis and just kill him and me with a rock (truth), when I get a Ingram I grab it and go to orbit, come back and do it again, P.s. draksis dies ridiculously fast