You'd need to try on some close targets to see for yourself, it would still come down to knowing your aim points. On x8 mag, my 8 yard aim point is 2.5 Mildots.
There are different 30mm mounts on fleabay in differing heights if you have a hunt.
I think I might have a set of 30mm reach forward mounts in the cupboard if you want me to check. I could bring them to the club on Sunday and you could try them if you want. Just let me know.