Help with some stage swapping...

[TPW_ThatOneGuy]

Just trying to port Mewtwo2000's new Sector Z 64 stage over Lylat Cruise, using a Corneria-based REL. I read somewhere that you just have to replace STGSTARFOX_GDIFF.pac and st_starfox.rel, but the game crashes upon loading the stage. I've even tried replacing all the PAC files, but the game still crashes. Help please!

[Blue Vixen]

Lylat Cruis just isn't .rel friendly, Castle Siege too.  :(

[TPW_ThatOneGuy]

RIP
Oh well. Thanks for the answer anyway.