Got a couple of questions regarding the use of coilovers on a Series 2 RS Turbo.

I am interested in getting myself a set, but have heard in the past the rear of the S2 is not really well suited to the use of coilovers as it puts alot of stress on the rear which it was not designed for, and extra strengthening would be useful if I was to go ahead with some, what are peoples thoughts on this?

What ride hieght do people think is best for "normal" driving? I believe 25mm is meant to be best as any more can give understeer? anyone shed more light on this?

What make would people recommend going for? I was considering getting a set of Gaz coilovers, but was also aware of the AVO coilovers. Anyone got any recommendations?

Thanks in advance for any advice