Swap done, no problems, just took it slow and made sure i put everything back in its right place. It was very interesting to see how a pickup looked on the inside, maybe now i can make my own haha.
Anyway, A5 Mule: Awesome, the midrage was the same as before but with a meatier bass and more highs. I wouldnt call its tone vintage anymore, its like an extremely responsive vintage hot or even modern pickup. It's really the best of both worlds, a mule raff, or riff mule.
A4 Riff Raff: Not that much of a difference really, more mids but the highs and lows are almost the same, however there is a slight improvement in its tone, to me at least. The middle position sounds even better than before, a little more body to the tone. Instant Jessica-tone.
I encourage everybody to experiment with magnets, dont be afraid that you'll damage the pickup, read a tutorial and take it slow and everything will be fine!