The styli WILL fit but the performance will not be the same Red and Blue styli are interchangeable in their respective bodies, the same applies to bronze and black bodies and styli (I have all four of them). If you think the red is an awful cartridge with a high frequency emphasis I am worried about either your ears, the rest of your system or your ability to set up a cartridge. If anything it is a little lacking in treble output, sweetness and detail but with a good low end dynamics and vocal range. The blue is sweeter in the treble but with a little less dynamic impact but a better stereo image.
Just goes to show that recommendations are very individual and you really need to audition for your self, as no one will hear what you do. One man’s meat as they say!