That may be because you did a touch up a while back when everything was dropping and the old G-10 was drifting. That's why I held off (as much as I didn't want to) Im sure when I did my last alignment it was still in the box since it was last year. I may try touching up my dish this summer but after today with the great performance in the rain I don't know what I would gain.
BTW is your G-10 lnbf at boresight? And is your dish pointed with that lnbf at G-10? Just curious since your signature is showing 3 sats for your G-10 dish. Or are you compensating any with the dish for those other bird's? Mine is boresighted at G-10 with G-27 off to one side.