I very kindly ask you to simply write me an email for matters like that and I'd be more than happy to react and help right away.
Theoretically, the DD-kit of the FTW can be adapted right away BUT the adjustment options would be limited because the main and slave pedals are not mirrored to each other resulting in a clearance problem on the slave side where the DriveShaft would meet the DD-link very early at the beater's back swing (which is not the case on FTW due to the situation that the DD-link and the whole cam runs on the opposite side of the pedal).

Therefore it is necessary to convert the pre-2019 Darwin to an "almost" Darwin FTW by adopting a few parts and having some parts replaced. Things I already did a few times but nothing that can be easily offered online and purchased with a simple "click"

f you're interested, please simply write me an email whenever the time feels right.

Best regards
Dennis