The handling of the RBL is different from my SO4 (my point of comparison since it is my primary SC gun) and I would guess that the RBL does likely have a higher Moment of Inertia (MOI) for the same weight. I believe this is because the RBL has the weight distributed out into the barrels versus my SO4 (thinner & more refined barrels vs. the RBL). The guns weight about the same - SO4 a little less than 8 lbs and the RBL that I looked at was a bit over 8 lbs. Based on other threads here, this weight is not uncommon for the 12 gauge RBLs with some going well over 9 lbs. Although I plan to shoot the Poli at targets predominately, if not exclusively, I am not particularly recoil sensitive and the Poli is about 7#-10 oz. Based on some posts here, I think this gun should be more lively than the RBL which is both good and bad. Good in that it moves to the target quicker but bad if it gets off line with poor technique. However, I think at this weight it should not be too much of a problem. Assuming that I find the gun acceptable next week, I will try to post some pictures and follow up comments.
Thanks
Z