Flat vs Upright Swing Plane(s)

whatever the current swing motions folks have the real ways forwards is looking to improve that existing motion by ideally going back to the first link in the chain that initiates the whole swing subsequent problem issues - the outcome, goal, always looking for sound impact conditions that can be a ways better repeated

think often times folks maybes get a little ways hung up on 1 or 2 plane, flat or upright swing descriptions when for good bunch of folks that isn't what is actually going on through the motions anyways

- 'one plane' 'A swing' etc all kinda marketing gambits - the hook line - by whichever particular teacher to get their own 'swing model' in the market to try to make it stand out so their stuff gains some traction

having a lead arm plane on a similar plane to the shoulder plane - or having a lead arm plane little ways higher than the shoulder plane - either - still means the body pivot, coil, has to be there just the same ways

so look at where would it be beneficial for a particular golfers motion to be from set-up, through the backswing to give the optimum opportunity from atop the swing to then have a good functional downswing to have real sound impact conditions
(taking in any physicality issues folks may have)

{would say to what you looking to do through a change that some set-up adjustments plus a little ways different takeback to the top of the swing - mostly based on what the right arm/shoulder are at address & then what happens through this movement back to the top
- looking to change this would have a very marked improvement on the subsequent motion to impact, so impact & the shot outcomes as a norm

- looking to change this would for sure but just as a by-product give a lead arm position that was a little ways higher than the shoulder plane (so not under the shoulder plane as currently is) but that would come about by a little ways better right arm/shoulder movement back & not just by looking for a more upright top position

but bunch more important would mean having the right arm/shoulder motion through the backswing to atop the swing that could then function a good ways better to deliver some real sound impact conditions}