I'm happy to confirm: Every one of my games works flawlessly!
I own a PAL Wii, no modchip, I'm using WiiGator's 0.3 with this entryholder bugfix (commented 10 lines with the entryholder variable out).
Disaster: Day of Crisis - works, no problems loading stage 8
No More Heroes - works, does not crash on easternmost road (crashes without the bugfix every time, tested it 3 times)
Mario Kart Wii - works, played a whole cup, played 2 online races (didn't try it before)
Manhunt 2 - works, played a whole level (worked before)
Endless Ocean - works, dove in 2 areas (worked before)
Wario Ware - Shake Dimension - works, played 1 1/2 levels (worked before)
All games are 1:1 copies and PAL versions (NMH = NTSC converted to PAL)
Also, the loader starts up every (ok, I tried 3 of them) original game disc (Brawl, Mario Galaxy, RE:UC). Found out that the problem with this lies in the autostart channel. Maybe we can fix that, if someone needs this option (?) ...
Maybe we got the perfect loader now? I have to try some game that did never work... Maybe I can copy my Okami disc.