My dealers senior technician/mechanic told me last year the following about Kymco Scooters and their clutches:
He had to clean every now and then a bell and a clutch for customers on warranty. Mostly with little longterm success.
Furthermore he said analogous:
"There is only 2 good ways riding a Kymco scooter. Idle or full throttle."
I probably wouldn´t want to agree totally to that statement, but it may explain (inofficially) pretty good Kymcos obvious clutch problems/issues.
But I think I can live with that short minor shudder on those unsexy low rpm snail take offs.
Welcome to the shudder club!
Have fun! Enjoy riding!