It's nice to see someone mess with the Beta needles, but I gave the Suzuki needles a try and they're considerably better than the taper that came on the bike. You see a lot of people rave about them, but I thought they were embellishing a bit. But I had my first ride on the NEDW needle last weekend and it surprised me how much better it was.
The reason I tried them was for the reasons shown in this thread. The deciphering and just general knowledge of the Beta tapers is questionable (nobody could even tell me if there was a half clip option). So I went with the Suzuki needles for availability, knowledge, and convenience. But the plus side, is its a much nicer power delivery.
I'm now running the NEDW on my 250RR and I have the NECJ as a stocking stuffer for my wife's Xtrainer. So after Xmas I'll be seeing how the NECJ does on her 300.