Considering the low level of talent available via Free Agency, I agree that at slightly larger limit is within reason. I would suggest 3-5 free agent signings per real world day.
I understand we have ghost players activated, but ghost players don't take random talent boosts and become serviceable major leaguers. It might be a long shot, but I always fill my minors because the chance is there. If we don't have roster limits in the minors then we should consider that as well.
My 2 cents.