I have now put some permanent anti puncture gloop in my front tyres. However I inadvertently discovered how effective it is when I tried filling through the air valve pipe. It became more and more difficult to squirt the stuff into the tyre (yes I had removed the valve) and so I gave it a puff of air and that was it. Now fully blocked. Went my local garage to clear the blockage and ended up by splitting each tyre off one rim, squirting directly into the tyre and re inflating. I believe the problem lies with the 90° bend in the valve pipe.
For those who ordered the tall screen option. Having waited 10 weeks for the tall screen I ordered with the vehicle I have opted for the fly screens and have removed the seat squab and I am now sitting on a vey much thinner base so that my head gets some wind protection, I am 6’3”. I found I am to be charged spare parts prices and not the list price and I have lodged a complaint with Malvern given that it not my fault they can’t supply the screen. I was told that the tall screen is not likely to appear any time soon if at all.