YS1500 Questions

Hello,
Looking to get a few answers about the YS1500:
1. I don't see a drip tray; Do the drippings just make their way to the bottom of the pit and then empty to the drip bucket or is there a cleaner route?
2. Without a quick way of dispatching drippings, is the pit more prone to grease fires than a pellet pit with slanted drip tray that delivers drippings to the bucket?
3. Is there a cast iron tray for the YS1500 like the new(ish) one for the YS640? I'm guessing sitting the one for the 640 on the grill grates would suffice if there isn't one made specifically for the YS1500?
4. If there isn't a drip tray, how hard/easy is it to clean the YS1500 in comparison to a pellet pit with a drip tray?
Any other bits of wisdom is appreciated.
Thanks for your help!
Looking to get a few answers about the YS1500:
1. I don't see a drip tray; Do the drippings just make their way to the bottom of the pit and then empty to the drip bucket or is there a cleaner route?
2. Without a quick way of dispatching drippings, is the pit more prone to grease fires than a pellet pit with slanted drip tray that delivers drippings to the bucket?
3. Is there a cast iron tray for the YS1500 like the new(ish) one for the YS640? I'm guessing sitting the one for the 640 on the grill grates would suffice if there isn't one made specifically for the YS1500?
4. If there isn't a drip tray, how hard/easy is it to clean the YS1500 in comparison to a pellet pit with a drip tray?
Any other bits of wisdom is appreciated.
Thanks for your help!