I dont have a Savannah and have never shot one, but about the arrow flight I second hgsnprs opinion, it is most likly the release. My arrows were flying bad and I did all kinds of things to fix it, like moving the brace height nock height and all that stuff to the bow. Then I worked on my form and that fixed the problem, now when I get bad flight it is now because of me. It is inposible to tell you how to release but when you do it smoth you will know it. I shoot arrows that most have said are over spined for my bow, but for some reason I went with them. They fly great.