"I guess I really don't understand the problem."
Well, T/C acknowledges the problem. When the Omega came out, they stated on their website that it would shoot "sabots and conicals alike". They have since taken that off and will tell you if you call that it is designed for sabots, and they now don't make any claim that they will shoot conicals.
And a new gun that shoots 8 inch groups at 25 yards with a bullet as good as the no excuses has something more wrong than just normal tinkering will fix IMO.
I paid about $500 for the Omega about 6-7 years ago for hunting in Colorado, and until the FPB came out, the only bullet it would shoot was powerbelts. And that was with 4 years of tinkering with different bullets, different powders, wads, etc. Was going to sell it when FPBs came out.
But I told them the truth. I won't buy another one of their guns until they get this issue resolved.