Thank you for the quick responses! You guys are tremendously helpful. To explain further:
I have cleaned the stylus. The Dynavector P-75 is about two months old and has been powered up since I installed it (break in should be complete). I did swap the Dynavector P-75 for the built-in preamp of my McIntiosh C32 which didn't resolve the sibilance. The C32 is an old unit, about a year ago I sent it to McIntosh for a complete refurbish. My main is a McIntosh 7205 that was originally hooked up to a Meridian 565. For a while, I was really into the movie thing, hence why I have a Meridian pre and 5-channel amp. About two years ago, I got back into vinyl and haven't used the Meridian since. I think I may sell my 5-channel equipment and go back to all tube, 2-channel (maybe a Line Magnetic integrated). I contacted VPI and they are nothing short of providing amazing customer service. They are sending me a Grado Gold cartridge free of charge so I can test. In return, they requested that I send them my Ortofon 2M Blue so they can test it for me. While I'm waiting, I'm going to take my old Hafler pre-amp I bought in 1985 (showing my ripe old age now) and replace the McIntosh with it to see if it is the pre-amp and not the cartridge. That's an easy swap, I also have a old integrated Adcom 3-channel amp, but swapping amps is a little more difficult due to weight and my equipment rack. I think, I'll swap the pre-amp first, if that doesn't have any positive results, I'll wait for the Grado Gold. If the Grado doesn't do the trick, amp, speakers, and the such will all be swapped.
Again, thanks for all the feedback guys. This has been tremendously helpful.
You know what's so damn frustrating, we buy all this great equipment to do one thing, listen to the music. When issues like this arise, and I don't know about you guys, but I start trying to rectify the issue prior to enjoying the music and that just sucks!