Thank you, HiVizMan!
I went back and retested my 4 saved OC Profiles by running RealBench 5 times on each profile. (Not 5 individual runs, but one big run with 5 passes.) I also ran my old version of Prime95 (v25.11) for at least 1 hour, AIDA64 for at least 2 hours, and HyperPI 0.99 (32M, Above Normal Priority) before I declared each OC Profile as "fully trusted".
On two of the profiles, as they were in the second of the 5 passes, and in the Encoding section, I did experience two crashes. I added 10mV to my 4.5 GHz profile (Vcore = +1.280V and Caches at x43), and 5mv to my 4.4 GHz profile (Vcore = +1.250V and Caches at x42).
So, in the end, RealBench v1.1 did seem to stress my system just a wee bit more than the other nasty programs that I was having my computer run.
Thanks!