Whats the difference in the 2? besides the testing for promotion. Pros V. Cons? Why would a department change to the other? Looking at police departments in the DFW area of Texas, if this matters. personal insight: I have been at the top of performance in my non law enforcement job for the last 7 years and was recently laid-off due to seniority (everyone else has been there for 20-40 years). I have vowed to never put my myself or family in this position again. But then again, maybe this is different or maybe I think to much... any help would be greatly appreciated. Thanks.