Grimeca semi-hydraulic disc brake

Hello All,

Has anybody fitted and used one of the older style Grimeca semi-hyraulic disc brake kits, where the master cylinder attaches to the fork and it`s operated by a cable?

If so any problems fitting it (most people I talked to say it`s a very tight tolerance and spacers/shims are usually required).

But the main question is - ARE THEY ANY GOOD? Ive read in a few places that its only worth it if you fit a fully hydraulic brake - which means a lot more modifications and consequently a lot more expense?

Opinions please :o)