Managed To grab myself a frameset only of the new Twitter C6.
Frame looks solid so far; my only gripe is that it came with a 250mm seatpost and it's an aero shaped/D-shaped seatpost. I want to look for a longer seatpost preferably around 300mm to 350mm. I've asked the seller if its possible to get one but sadly they said that they only make that dimension for the seatpost.
I was just wondering if the shape and size of the seatpost a standard for another frame like a Giant is or a Specialized, etc.; the dimensions are 34.2mm x 24.9mm (I'll get the profile of the D Shape tomorrow after work)
I've also asked the seller if it's possible to buy a longer seatpost elsewhere, but so far, they haven't gotten back to me, so I'll wait for their reply.
It looks like a pretty solid frame so far. Can't really build it up yet but i will update the thread when I can