I??m the wrong one to ask as I??ve never grown in trays?..I chose buckets.
That said, I??ve nosed around for a while now and I??ve seen some ??trees? come out of buckets?..haven??t seen anything like that come out of trays. Most tray guys grow smaller plants, but more of them.

You??re a California guy (with few exceptions) limited to 6 plants in flower. That alone might help you with your decision?.it definitely influenced mine.

Best of luck,
HMR