Currently running R4 Wood 1.12 on my original R4, and I haven't encountered any freezes yet. I'm on the first gym, too.
Also, I'm running the EXP-Fixed rom, so fix your rom A.S.A.P.
Not sure if this has been posted, but better to be safe than sorry.
R4 WOOD FIX!
Turn OFF Cheats
Turn OFF In-Game Reset
Voila. That's it. I can confirm this boots past the white screen, and gets you to the title.