Hi Alex, yes body rotation is absolutely key to generate power on the forehand and good use of the body means you can keep the arm more relaxed to accelerate too. All the technical parts you’ve listed here sounds spot on and are some of the key things to getting solid shots and being consistent. Playing your shots in a mirror is a good way to look at your shots without a table for sure!
We’d be happy to take a look at a video and give you some feedback, the best way to do it is upload a video to YouTube and put it as unlisted, and then send us the link in coach corner. Video files don’t generally send well over email because of the file size. All the best, Dan
