The subject line really say it all. I understand the improved field of view issue with the 30mm units - is there anything else? I don't really expect to be shooting like someone with a 1911 in IPSC competition. Probably looking for something with a 4moa dot or so. This would be for straight-wall pistol cartridges from a 10" barrel at 50-75 yards.
For those with experience, please let me know your preferences and why.
Thanks, Ed