Sorry didn't spot this post before.
Running the V103's on my Zed last couple of years. Tread wear seems fine, wearing evenly (frequent alignments as I like things just right). Very firm sidewall so lateral stability during cornering is good, but if you get a stone stuck in the tread til it spins out I can feel it (but have a very sensitive setup in my Z and I notice anything different having had my Z for nearly 9 years). Wet and dry traction is good. Extremely rarely see the traction control light up, really need to give it some. Not noisy like the stock RE040/050's.
I've driven a lot cars and many Zeds with different tyres. Really quite like these. They're much better than the stock shoes that 350's came on RE040 or RE050's.
I guess the downside is the price. Over here cost around 2k clams Kiwi (so over 1k pounds guessing in UK), so not cheap, but tyres are so important.
All important question, would I put them on my Zed or another car again, ....... yes.