Low ceiling to me means I choose a faster mid rather than Roc/Comet style. 300' to me is pretty standard with a mid so I don't need one with extra glide or turn to help...this depends on your arm speed. So I'd rather throw a mid that won't drift right on me, but isn't so overstable that if I give it a touch of hyzer accidentally that it would drift left the whole flight. That to me means a Compass, I'd hit it hard and have it hit the ground at 300ish before it fades. That could be Buzzz, MD3, a mild Roc3, etc. depending on what you like.
If the hole gets to be at the far end of your mid throwing comfort range, then I'd be throwing something with a little more glide/turn and hyzer flipping it slightly so it carries longer and the fade is forward finishing, but that's a touchier shot and at 300' I don't need to do that.