If I sell Pioneer/buy Aries, hear BIG difference?

I'm contemplating 'the jump' up to an Aries TT from my faithful Pioneer 'top of the line' direct drive

The Old Pioneer has been 'souped up' with a Grado Reference Platinum cartridge and an upgraded Maestro Tonearm cable.

Question: Will the sonic difference just BLOW ME AWAY?

Another question: Will I hear a difference between an Aries/JMW 10 versus an 'extended' Aries/JMW 12.5 setup?