I have spent the last 6 months learning the modern 'wind shield wiper' forehand (which has seen the standard of my game and confidence fall to rock bottom). I've had to unlearn yrs and yrs of muscle memory, as I was taught tennis in the 80s when it was all closed stance / eastern grip FH type stuff). Happy to say that I'm almost there and am really enjoying hitting the ball hard with good net clearance - it was definitely worth the pain! My problem is that I find myself falling/leaning backwards a lot when using the open stance (which of course causes errors, which quickly takes away my shallow confidence in the stroke - and before you know it I've tightened up horribly and can't hit for toffee). Does anyone know a fix for this please?