If you are trying to get 116.9, 113, and 103, I would suggest trying to get your center lnbf locked on to 113W. Then put your 103W lnbf to the west of it and slightly lower. And put your 116.9W lnbf to the east of the center and slightly higher.
I have a dish setup with three lnbf's (87W 99W and 103W). The difference with my dish being that it is one of those elliptical Hughesnet reflectors. With this I am able to receive most all of the normal full time signals that I get off these birds with my 90cm dish. I'm not sure how much more of the ark this elliptical dish can see at one time as compared to a regular 90cm offset dish. I know its not the same setup as you, but I believe the idea behind figuring out a solution should be pretty similar. Good luck!