I run a modified version of this mod in my mod. so far i have seen no problems. i think it will work fine in 1.2.1.
there may be some thing Sakura needs to do to because of the changes so that everything is how he wants it but it runs good so far.
if anyone sees something that needs fixed i can release patches for it if Sakura wants me to if he dos not have time or the ability to test the changes.