Good to hear from you, Tony. I have always admired your willingness to experiment your rides - but there will always be winners & losers.
I wasn't aware that the Tricity 300 had landed on our shores. And your 300 experience is not too dissimilar to that of my 155: cornering, at speed, was confidence inspiring, but the reverse was true 'walking' this scoot or wheeling it about at very low speeds. The steering mechanism, once having passed a certain cornering point, just wanted to 'flop in'. Suddenly. Made worse by the fact that weight is held high. This scooter has been historically pitched at new, less experinced riders. But I always felt that its class weight penalty, and the steering anomoly at vey low speeds, was anything but what a novice rider might find comfortable.
So, on to the a new Honda Forza 350 (330), perhaps? When they do arrive at our shores.
I traded my Tricity 155 for a Vespa GTS 300 Supertech. Without having ever ridden a Vespa, or test ridden the GTS. Most people find that amazing, especially the dealer when I was taking off for the first time. But I have been delighted with my purchase - against my intended use.
Let me know what you do - I'm genuinely interested ...... Mark