Nice middy.
I've got both the EMOD and CTR stocks and I would recommend the EMOD if you have a heavy front end carbine with rails and the CTR if you have a standard handguards and lightweight front end.
The EMOD balances out a heavy front end carbine but if your front end is light the EMOD stock is too heavy for it and would have a bad balance.
I also have both EOTech 551 and Aimpoint, with my EOTech when I first turn it on it would be in the middle brightness setting, I'm not sure if all EOTech models are that way.
+1 I agree if you have issues with your EOTech I would recommend replacing it with any Aimpoint model, the Aimpoints are more reliable in my very long experience with them since 1989.
ETA:
It took me also a long time to get my second AR, it took me 14 years, I replaced my first SP1 rifle with a brand new A2 rifle after 13 years, then the year after that I bought my second new A2 carbine.
Then a year after my carbine I got my third new A2 HBAR rifle, that's Black Rifle Disease.