I agree...I think a dd is all about no give...its a direct hit thats the appeal aling with simplicity....that being said...ere we go and if im talking bollox fair enough....I really feel people are put off dds cos of the hard hit and side wobble....I for one think they are advantageous....the strike hit in a 4mm stroke cam is strong...in perfect motion...and in my experience the side action actually helps ink flow...that then brings a question to me that maybe a slight side motion should maybe explored more...maybe an adjustable dd is the way forward...dan kubins springer model look very similar to what im getting at..but maybe a slide and cushioning system on a cam wheel if that can be done or a locking system rather than using the eye loop on a runner with springs either side...?? Wish I could build lol...and if any of you builders bring that cam out in a few months I want a cut and it will be named after me!!!