It's recommended first to peak the dish on your south most satellite first, for you that would be SatMex5 at 116.8W. Use Usals to move your dish to that satellite. Then try to achieve best quality for transponders, which give you now 25%.
Can you already watch something from that sat, such as "ESNE", or "Almavision"?
When I come home, I will check which signal is the best for my location on that sat, and will let you know.
Make sure LNBf is all the way out as far from dish as possible and has a "0" skew. Mark your poll and motor bracket and dish bracket with some marker, if you lose your 25% quality, you will know how to return. It should be very fine adjustments, like a "hair" distance from what you have now. When you get the best quality on Satmex5, move to other sat, per instructions on
Sadoun's site.
Good Luck!