https://www.google.com/amp/s/amp.theguardian.com/sport/a-straight-bat-cricket-blog/2015/jul/21/ashes-2015-australia-england-joe-root
Good man,
@LEACHY48 !!!
I was having this problem and kept getting caught at mid-off. I just couldn't figure out what the hell was going wrong. For some unknown reason, I kept lifting the bat up during my prep and trigger. Naturally, the bat would come down at a very high speed.
I tried this in the pre-game nets and kept the bat at stumps (and sometimes even lower) and then used it during the game - had the best score of this season.
Caveat: my right hand grip is very gentle (almost a index finger-thumb pinch) and for some shots to the leg side, the bat handle left my right hand and the shot was carried by my left (top) hand. Even with that minor inconvenience, I was able to ground my mid-off/cover shots.