Call will come from (256) 770-????, they will leave a message if you don't answer. That adds time, if they don't hear from you then the e-mail goes out an the 5 days start. Everybody should track the numbers on the CMP forums.
https://forums.thecmp.org/forumdisplay.php?f=110
As for why I picked Field over Service? Easy, I didn't want a heavy parkerized 1911 with a TZ slide. Service goes by looks. I read the 1911 forums from the first round. Some people are pissed that the Fields are better pistols. They all are mix masters. An I never was issued a pretty 1911A1 by Uncle Sugar. I carried a 1911/A1 for a long time as a 95B. The M9 replaced her in Sep 1990, because 45ACP wasn't available in the Desert (BS Tankers still had M3 Grease Guns!!!).
https://forums.thecmp.org/showthread.php?t=274987
Good luck!
Thanks for the info. Now I have some thinking to do.You have me leaning toward Field grade (and with the $100 I save I can buy a box of ammo, if I can find it!)