Cartridge Upgrade - Nagaoka or Goldring


Current set up:
Rega P2, Goldring E3, Rogue RP-1(built in phono), Rogue ST100, Martin Logan Montis.
I love the sound I get now, but looking to step up from the E3. Has anyone compared the Goldring E3 to 1042 and/or Nagaoka MP200? How about Goldring Eroica? 
Would the Nagaoka work on the P2?Would a difference be significant with any of these cartridges over the E3 using a built in phono in my Rogue preamp?

I listen to all kinds of music...from classical to heavy metal.

Thanks in advance!

128x128audphile1
Those pickerings are very nice.  I never see them NOS anymore.

My Pickering XSV/4000 cartridge is still sealed, the rest of the samples are opened. Still hunting for them, NOS are very rare indeed

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I think 1042 is very good match for Rega tonearm. Great Cart.
I have E3 on my Technics 1042gr and I'm very, very impressed !!!