I mentioned 1 Mhz because there are some LNB's that claim half of that , 500 Khz.

The Invacom QPH would be usefull if you needed also to get the Circular Birds , other than that, no need for the extra cost.

The calculated skew should be the optimal BTW , maybe you are also moving forward backwars the LNB as well while setting the skew. I have found the skew values from Dishpointer.com to be precise at least for the 3 birds that I tested with when I did not have the motor set up yet. 79w , 30W and 123 W. I will play with the focal length this weekend now that I know it is 510 mm.

Dish Mounted sideways? what did you do that? Well this is a free country I know lol lol lol but unless the manufacturer designed the Dish to be mounted like that you should mount it upwards.

Well got to go , 30 min luch is over.