Riggle Vtaf w/Rega P9 & RB1000. Good idea or not?

Greetings fellow vinyl lovers! I am buying a Rega P9 with the RB1000 arm. My cartridge is a Clearaudio Maestro. I would really like to have VTA adjustment capability with this table and have heard very good things about the Riggle Vtaf VTA adjustment wheel. Here is the question. Is it a good idea to install the Vtaf on the P9. Has anyone out there done this and what was your experience? The RB1000 has a 3 point attachment system that is different than the less expensive Rega arms, so I am little wary of installing the Vtaf on the P9. Also, this is an expensive table to mess with and I would not want to effect it in any negative way. By the way, I have about 5,000 records, 3,000 being classical, and I play vinyl most of the time.
Thanks,
Joe