i think that the blue wouldn´t give more than the red in quality due to the price but nagaoka is a very good brand ,when younger Ortofon meaned quality today they are cheaper in all senses but i have a nagaoka MP-500 to substitute one cartridge on one of my 9 turntables from the 70, the SL-1500 , but a friend bought a MP-110 when using in his thousand of €´s Pro-Ject turntable and it seems at least more dynamic and with a regular price ,but the 2mBronze i tried it and it was a good MM stylus like the AT95 in 1979,that i have on a PL-ES that i just trade the cartridge ,original one PC-30 that sounded very good but new substitution needles are very bad today they look 30% of the actual stylus in 1991(from HUCO)my go to substitution needles but at the time the substitution needles were almost as good as the original one, PL-ES because it´s a better finished turntable from the ES-2000 system from Pioneer that cost 400 dollars in 1974 in Japan for the whole system and believe it or not i didn´t do anything to it since than but i needed a cartridge so i went for the MP-110, which sounds more dynamic than the 2m red or blue ,the PC-30 with origynal stylus sounded a lot better than the 2mred, i also bought for a PL-560 79 pioneer model a 2m black Ortofon LVT,and a grado prestigeIIIgold that was being sold in promotion and as a wider spectrum of frequencies this for my SL-3310 from 76 technics model,that i only took it from the box in 2017 and it had a 207C cartridge and two eps-270SD stylus but seemed less good in the paper but in reality i prefer it´s sound to the Grado but it as a more detailed sound without a doubt, the new grado ,la friend of mine joking with me when we were comparing new and old cartridges i told him that the next day we were gonna try the wooden grado that costed 500€ ,when meeting him the next day he had it already installed in his store turntable a 95 SL-1200MK(whatever they were selling at the time)and when playing a record from dream syndicate live at the rajii´s that i boight in 1990 and it as the best sound live with guitars voice and drums and recorded directelly into dat as it says in the back cover but the cd is unheardable,he played it on the song" Boston"and i was amazed and told him "this is theb best ,well 500€ is already some money but sounds perfect" ,when i heard him laughing at me and saying this is the almost 5.000€ Grado and it´s made of wood from a tree that is rare and only foubnd ,don´t remenber where so i was not having a laugh and told him give me the prestige gold and paid maybe 387€ in promotion, that ended up to sound very good in my system, also bought a AT mc type and the ortofon cadenza black S which sounds funny and the AT is very good MC type art9 on my PLC-590 that had a V15 from sure, it sounds diferent but very detailed