that's a heck of a bargain!
yah, the 3 lnb is super tricky to aim. it's fun to try tho, regardless. you'll wanna aim for 119 first, then skew to hit 110 and 129. but i mean, you have to be DEAD ON with 119 to get an awesome 110/129 skew. if you have some free time, give it a shot
