I just purchased a new string from one our fine sponsors but am having trouble and could use a little help. The new string is an 8-strand, the old one is a 10-strand. I set the brace height and nocking point for the new the same as the old. Arrow flight is great with the old string, not so much for the new. They want to fishtail. I adjusted my nocks to eliminate that potential issue. The only difference at this point is I haven't added string silencers to the new one yet. I'm at wits end. Any suggestions?