Lucky you! I had three times RES hunting, both in the system as in neighbouring ones, and always came out under 1 mil -- sometimes after hours of play. Both Wing as Group solo as Solo.
When I winged up, there were almost more CMDRs then NPCs, and no big fish. Warped to next instance, same. Changed system, it got a bit better, but overall, same. This morning in a good-morning-breakfast-Solo, now and then a Conda, otherwise, same. Even with three or four RES reset jumps. Interestingly, there were Condas and Pythons two times after dropping in right at the beginning, but then the RES simply dried out again -- many Sideys and Adders, some Cobras. So the general rule of thumb that first ship is Wanted Conda=good hunt didn't apply.