Shame you're further away to other dc5 owners
Shame you still don't have a setup you're happy with but describing it as
"flabby, heavy, wobbly and snatchy. "
Is the the actual steering wheel, how the car feels under you or the car pointing direction
Was the heavy feeling there before the new tyres?
Re07 being stiffer tyres, bigger and so will be heavier I would imagine
I have eibach and can't fault them, although not had many other experiences with others
Wobbly, is that the car in general, on turn in at normal speed and slightly pushing on?
Snatchy I can kind of relate to. If pushing on hard it can be felt like what I imagine is torque steer, but I've got used to the characteristics and control through throttle, but when a friend drove it it caught him out, maybe it's the LSD or what some call as bump steer. However you have buddyclub rca I think which should help, unless those are at fault? Was it like that before fitting?
Do you know if its standard elsewhere, only as I think your car had full braces around so maybe other things done?
So would be interesting to know your thoughts on general steering, steering wheel weight etc.