150lbs on p2c. zipp900+606 or zipp900+404?

I usually ride on very flat ground and little wind. I do have the OEM wheels for extra windy days and steep hills.

There is no such thing as a 606 wheel. There is a 606 wheelset, which consists of an 808 rear and 404 front.

I have run both the 900/808 and 900/404 setup. Obviously the 404 is lighter but given your riding conditions I would go with the 900/808 setup.

I usually ride on very flat ground and little wind. I do have the OEM wheels for extra windy days and steep hills.

Where is this place with the “very flat ground and little wind”?

I must move there.

I usually ride on very flat ground and little wind. I do have the OEM wheels for extra windy days and steep hills.

are you planning on regularly training on these wheels or something?

if so, save yourself some money and don’t buy them.

otherwise, get the 808 front.