I think partly, where this is coming from is that your recent posts did sound a little condescending even if not meant that way. I've done enough to my car to know what works and what doesn't etc etc, most of us that have been on here a while know that a zed 'could' make these gains but at the cost of an awful lot of money which was obviously not the case in Martins cars case, it was just a little off topic i guess.
Ps: Still awaiting a reply!