XP-51F/G/J vs P-51H windscreen

[BarnOwlLover]

I'm wondering about the differences in size and angle (of the front panel) for the XP-51 lightweights windscreen vs the P-51H. I know that they're different (P-51H has rounded outer panels for example), but I'm wondering about other size and configuration differences. This is due to comparing things like wing position and other items that make there seem like there may be a size and front panel angle difference.

 

[BarnOwlLover]

I have to admit that I'm confused looking at side profile pics of XP-51F/Gs and P-51Hs that the windscreens look about the same size but the positioning is off on the fuselage, though the distance from the windscreen and the headrest seems to be the same. Makes me wonder if the seating position compared to the P-51H was moved back compared to the F/G.