Hey! Welcome back. 
For Transfering: I believe in canon it's supposed to be pretty rare, but at Triad it's a little more normalized. Partially it's due to a lot of folks writing a new character elsewhere and transferring in, which is a fine way to go! Lots of dragonriders had to transfer North when the Northern Weyrs reopened some 14ish turns ago, and even as recently as 4-5 turns ago when River Bluff fell and Barrier Lake Weyr opened. We have a higher number of PC retired/injured riders at DCW, but we haven't really implied that injured dragonriders get sent anywhere for the most part. However, that doesn't mean it doesn't happen to some folks.
Would you be amenable to a different type of injury that results in the bronzerider not having enough stamina to fly a full Fall? I'm just casually looking online (WebMD, etc), and while they say that folks can live normal lives with one lung, many struggle with exercise and above average active lifestyles. Threadfall is incredibly physically demanding, and I'm not sure if the character would feasibly be able to even fly a half fall. Our technology level is roughly somewhere in the 1800s at the highest, so mortality would also be an issue at the time of injury. Someone getting a full-body threadscore and living would be sick as heck
I trust Devin (as the L1 at DCW) and your mentor to steer you in the right direction when the time comes! I've got a handful of folks at all three locations, so hit me up if there's anything you'd like to write.

For Transfering: I believe in canon it's supposed to be pretty rare, but at Triad it's a little more normalized. Partially it's due to a lot of folks writing a new character elsewhere and transferring in, which is a fine way to go! Lots of dragonriders had to transfer North when the Northern Weyrs reopened some 14ish turns ago, and even as recently as 4-5 turns ago when River Bluff fell and Barrier Lake Weyr opened. We have a higher number of PC retired/injured riders at DCW, but we haven't really implied that injured dragonriders get sent anywhere for the most part. However, that doesn't mean it doesn't happen to some folks.
Would you be amenable to a different type of injury that results in the bronzerider not having enough stamina to fly a full Fall? I'm just casually looking online (WebMD, etc), and while they say that folks can live normal lives with one lung, many struggle with exercise and above average active lifestyles. Threadfall is incredibly physically demanding, and I'm not sure if the character would feasibly be able to even fly a half fall. Our technology level is roughly somewhere in the 1800s at the highest, so mortality would also be an issue at the time of injury. Someone getting a full-body threadscore and living would be sick as heck
I trust Devin (as the L1 at DCW) and your mentor to steer you in the right direction when the time comes! I've got a handful of folks at all three locations, so hit me up if there's anything you'd like to write.
