I was curious if anyone has any detailed information on the stats of pilots hired at UAL?

-Civilian vs Military
-hours
-where civilian are hired from (i.e. Skywest, envoy, PSA, part 91/135....etc.)

I'm thinking about making the jump from the 91/135 world into 121 regional in order to get the 121 training box checked. A huge pay cut for sure but could be worth it if I could get hired sooner with a legacy. Any advice would be greatly appreciated as to whether it's necessary or which would be the best regional from which all the legacy carriers are hiring from.