Having only recently switched from MDJs CyanogenMod7 v.2.6 NAND A2SD+CWM to Pongsters ROMs, my experiences may help.
I have tried / re-tried both of Pongsters ROMs that you quote above, and without doubt - BOTH are far better, faster & much more reliable than the old MDJ CyanogenMod7_v.2.6 ROM. This is no way a slant on MDJ - I loved his ROM's, but was fed up with the lack of support etc.
Pongster on the other hand is active, and the support here @ XDA is incredible for both of his ROM's. I guess HyperDroid-CM7-v1.0.4 is nearer to your old MDJ ROM as its also CM7, however, I favour HyperDroidGBX-v11. Its blindingly fast, very smooth & a joy to use. No crashes - very stable.
Without doubt the best I have tried. Hope this helps