If I hit those shots soft, it tends to come off the rail a bit for me also, but I think that is mostly from the cloth and slate not being perfect underneath, at faster than 30% speed it hugs the rail pretty well, although the first picture with both balls on the rail can be tough because your eyes and hands instinctively try to shoot away from the rail a bit for fear of jamming the cueball into the rail, causing the object ball to bank into the rail, thus drifting out. I usually hit that shot with a tiny bit of inside to have it curve away from the rail and back in a tiny bit. Helps my brain to not fight me when I shoot that shot.