Rega P3-24..........w/ Exact or Dynavector 10x5 ?

It seems like I'm going to able to get a fantastic deal on a new Rega P3-24 with the Exact cartridge installed. The package price will be the same as if I got the Dynavector 10x5 installed instead. The Exact retails for considerably more than the 10x5, so I'm pretty happy. From all the reviews, I know that the Exact is a significant improvement over the Elys 2, which is usually packaged with the P3-24. My next step, as soon as the funds are available, will be to buy the Rega TTPSU, to really make the analog front end sing beautifully.

But.....how will the music sound ? I want to continue using the built-in MM phono stage of my Rogue Audio Cronus amp, and simple logic tells me that the higher output Exact will be an easier load than the lower output Dynavector. My worry is that with the Dynavector, I'll have to turn my volume dial too far up, thus stressing the amp, and perhaps "running out of gain." Now, with my 5.0 mV. output Goldring Elektra on my NAD 533 table, I listen to records with the volume dial set at around 2 o'clock. The Exact's output is over 6 mV., and the Dynavector's is only 2.5 mV. Is my concern valid ? I am not able to audition the table with the different cartridges in my system, so I have to buy "on faith."

I've read equally wonderful reviews about both these cartridges, and it seems that each one will make beautiful music through my Vandersteens.....So, fellow Audiogoners, what are your thoughts ? I need some sound advice (pun intended.)