Originally Posted by DeepIron

It depends. If you play the stock version of 1.5 (not TMO or RFB) then combining 4.6, 4.7 and the wave mod would probably be fine. OTOH, 4.6 included a lot of changes to other SH4 files that would effect RFB and TMO installs in a "negative" way, that is, changing files in those mods. Even installing 4.6 first was thought to create some gameplay issues, at least in RFB, due to some "file dependancies" being altered. 4.7 didn't have any issues as it only affected environment files... no conflicts of any significance with RFB or TMO.

I tested 4.7 recently on my RFB install and worked quite well... YMMV.