Hey there!!!
I had exactly the same problems when I fitted my RG-470 with an OFR Pro.
First of all, I reckoned that since the OFR Pro came with the original studs, they should be designed to work best with the OFR Pro bridge. They are direct replacement, so, I took the old ones out (Lo-TRS) and placed the OFR studs.
Secondly, the trem cavity was not deep enough!!!
Third, the trem almost touched the routing on this area:

(You can notice that the fine tuners aren't aligned with the saddle "centre line", that's why it barely is any clearence in the area shown in the picture!)
So, I had to route that edge and, since I was into it, I also routed the cavity a bit deeper.
This will raise another problem, though!
The tremolo block of the OFR Pro is higher than the Lo-TRS, so you'll have two options:
1. leave the tremolo spring cover off;
2. route cavities into the tremolo cover.
Quote:
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Originally Posted by Crazy_Guitar

The tremolo block is deeper, so I had to cut the backplate.

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Check this post and PM me if you have trouble.
http://www.jemsite.com/forums/f18/po...tml#post760178