Just got back from the lesson, didn't actually get a chance to practice anything beforehand really so went in blind/from where I had been, sounds like good advice though especially after coming out of the lesson.
So was a bit unsure was to 'ask for' going in because on Friday last week it was 90% driver problems (but great round still) whilst my 9 holes yesterday was just terrible everywhere but we focussed on the driver slice anyway and turns out I was doing everything wrong, maybe not everything as he was happy with my ball position
It was indeed interesting to see the numbers, now I'm even more tempted to get a launch monitor, with the big one being that my club path was >15 degrees out to in, it stayed out to in throughout but I quite quickly got that down to ~5 or less which definitely helped. He also had me working on actively closing the club face on the way through, not sure I got the hang of this very well really but something to work on.
At setup it seems my shoulders were pointing left of target a bit, although it didn't feel it, so a big thing was changing that which felt kinda weird and wrong to start with but got a bit better even in a half hour lesson.
Hit some reasonable strikes in there as well, again more numbers but say 97mph club head speed, and a 200yd carry/220+ total (best drive to date is 206 yards total).
He also mentioned a few other things like starting the swing 'ground up', and getting the lead shoulder 'down' during the backswing (where currently I seem to keep them level-ish if anything the lead may go above the back shoulder a bit if that makes sense) but mentioned that those aren't immediately as important as club path/face stuff he had me working on.
Overall a good lesson it seemed, went over a bit and even then he let me hit a few more whilst he went to the next guy. Booked in again next week (probably won't continue every week for that long as it's a bit costly tbh but to start with...)
Also gonna try to get to the range before I play next to keep trying to practice what we went over, although I won't have the numbers but should be able to make some progress I think...