many traces have over-complicated routing, crossing layers multiple times
just a few (not all!) examples:
- VMEPX_IRQ2_N goes multiple times from top to bottom again to top etc. while could be easily routed e.g. in L3.
- VME_D_DIR around pin d13 of VME P1 connector could be continuously routed in L5, but instead it goes to L3 and back.
- same for LCLK_N (X:7247mil Y:3588mil)