Love the Super and it's often carried at my place. Handloading is the way to go, 9mm, 38 Super and 357mag components basically cost the same and getting into the 1400s can be accomplished easily with a number of powders.
I like to load 125gr Gold Dots for the Para 1911, one loading matches the 357 SIG factory ammunition with a 1371fps MV. I also have a 1445fps load, doubtful the it's more effective than the slower load, but it gives me distance.
A great benefit of the Super is that it can be loaded with 357mag bullets, the Colt 1911 is loaded with 125gr XTPs (1491fps) that match factory 357 mag velocities, but chamber pressures are kept below 33,500psi. The fast velocity/lower pressure loading is accomplished by using a neutral powder such as N105. VihtaVuori #4 hard copy has a lot of load data for the Super, as does Sierra #5; both manuals are highly recommended if you wish to safely load the Super to its potential.
Living in a very rural area, I've have had the opportunity to witness the Super's hammer of Thor performance on charging four legged vermin, when there's only enough time for one shot, I want the Super in my hands.