What are your thoughts on these types carbon frame designs. The headset is the integrated type and the BB is for a PF30. My thought is to build these features into my molds for the headtube and the BB. This is not for a mountain bike, its for a gravel road bike, basically  road bike with bigger 38 size tires.

Hi, I am no expert on frame design but I do have a decent understanding of the engineering behind it.
For years now manufactures have been trying to increase the stiffness of frames around the bottom bracket area. particularly on full suspension bikes where suspension pivots are often mounted. one way of doing this is to increase the size of the chain set shaft/tube. This however means external rather than internal bearings. This resulted in cartridge bearings being screwed into the ally/steel bottom tube.
When composite frames began to be developed this caused a problem, machining the thread in the now carbon tube. Different manufactures tried different things resulting in the vast array of BB styles you see now.
One method was the press fit style you mention. This method has a few issues, press fit requires extremely accurate machining and requires machining from both sides of the frame to produce the rebate for the shells. As the BB is often the datum point for any subsequent machining this means complex and expensive fixtures are required to hold the bare frames accurately in position which is costly. Also you can only really replace the press fit shells two or three times before the housings become oversize and the frame is effectively scrap. It also requires specialist tools so a trip to the bike shop is required.
Trek used a slightly different approach, bonding ally cups into the frame and then the bearing shells fitted into these cups. This also means that the bottom tube only requires machining from one side, keeping costs down. The trade off is a little more weight.
As for which is better I prefer the Trek method but that is just my opinion. I suppose much depends on what facilities you have access to machining wise, but either way it has to be extremely accurate.

Hope that has helped and not confused things Warren

Carbon Copies Ltd