all respect for the commitment, as im doing the same thing at the moment too (still prototyping, playing with shock locations etc) the angle that the shock is on coupled with the lenght if the actuating arm will mean that a very large input is needed to make the shock move at all, hense all the posts about the rear travel, to keep the shock position on the frame the shock and the rear triangle upper arm and shock mount on the actuation arm could be swopped to make it as bit more supple. really nice frame tho