If you tater chuck normally, the mk103 will be a fine tool, but for the average person who thinks "oh boy oh boy, give me a 30mm" odds are they will rarely be able to land hits.
Nö
Longer, faster, heavier projectile- it'll not only have more energy at the muzzle than the MK108, it'll carry it farther, and pack even more of a wallop once it gets there. The MK103 will likely be very easy to use,
unless you use it like a MK108.
The only issue might be threading the needle due to RoF, but with 2 MK103 each with an RoF somewhere between the NS37 and MK108, I doubt it.