Sorry Cavernmech, Ostro.

Sizing... well sloping top tube doesnt interest people.

6 sizes? If there was enough demand that might be possible, for now its 4 sizes. Those fit most people.
The top tube lengths will be 51 gets a 52 top tube, 54 gets a 54 top tube, 57 gets a 56, 60 gets a 58 top tube.
I guess the smaller of the 4 could have a touch longer 51 could have 52.5, 54 could get a 55 top tube.

The 54 and 57 would be most popular. The 60 might do fairly well considering I got alot of requests for a big frames. Although some could use a longer top tube on the 60..ie a 60 top tube or longer. 58cm should fit alot of people.

If I do them with a sloping top tube, people will turn up their nose. Unless the market has caught up with my design. I doubt it.