Your timing looks great from the back angle. Would need to see a side shot to confirm. The biggest issue I can see from that angle is how hard you pull the ball down in the down swing. It creates an inconsistent means of coming through the ball. One time you may come through the ball one way, another shot a different way. Since you take a 5 step, your first 3 should be long and slower which will create that shorter power step that every coach wants right before the slide.
Also work on relaxing the down swing. You don't want to muscle the swing. The only portion of the swing with any muscle movement should be at release when you rotate. Right now, you are in time until something takes you out of it. You slide then yank the ball down because it's impossible to be set and waiting on the ball without grabbing. That is where your accuracy is faultering.
Also, being a fellow lefty that is hooking the ball and playing further right, you may want to consider drills that get the ball into a roll earlier as you move inward. In the case of righties, they move in because they've created bump to the outside and are taking advantage of oil inside. We do the same, but with a lot less traffic, so we cannot create our own area as well. So while they move in with something that flips on the back to get the ball downlane to the dry that is created, we still may need some surface as we move into the puddle.
