:lol:
I think I know what you mean by "loose" on the RRs - but I couldn't justify or explain it to anyone else :D
I had my RRs in my Explorer, a serious lump of Mahogany. They were nice but more "open" sounding than they are in the Epi SG they were bought for (and are now back in). In the explorer I liked the RR neck, but RR bridge wasn't really cutting it - not enough oomph...
So I swapped MQs and RRs round. The MQs do everything I want in the explorer (including what the RRs did, but better - slightly thicker, lot more gritty, but cleans up real nice), and the RRs do their superb Angus job in the SG, a slightly more focussed humbucker sound than my Mules in a Tokai Love rock.
Final bit of info - accoustically, the Epi SG is all mahogany, but a lot harder and brighter sounding than the explorer, which has a lovely dark/mellow sort of tone.
I think it depends on what your actual guitar is like tonally - the RRs could be superb for what you want, or... :roll:
So... in summary... no help here then! :lol: