I say try both and see which one 'you get along' with the most
neither marker really any better or worse than the other, just down to personal preference...
I got an IR3 which I'm trying to get used to, seems like a really nice marker
But it don't stop me having an e-blade on pre order
May cancel the e-blade if I decide the IR3 is nice... once you get into the £900 and above price bracket to me they all perform pretty similaly, and people who own there type of marker will praise it.. and why not
Dave