I have no excellent skills in ISDX module, but i reach a complete filling of entire surface with tangency continuity. I rebuild surfaces. Expecially near the hole, geometry was very poor. IDD isn't a perfect solution. I think that for guys of reverse enginering filling this hole is a joke. Sure it's not a 2 click work as in other software. I attach Creo2 and STEP file. There are little distorsions on my work, but i'm not a specialist.
