Hello!
Just thought I'd reshare my AMEX BCE CLI increase today 
This card started at $1k in November, approved for 2X upon activation and today at the exact 180 mark I requested a 3X CLI but was countered with another 2X CLI.
CL is now $4k all thanks to this forum and the wise users! A big thanks to everyone, even though I mostly lurk 
Data points:
AMEX EX Score: 705 (4/23)
Last AMEX SP: 4/29
Current EX Score: 723
Utilization on card at time of approval: 75% - so it seems AMEX, in certain cases, does not care about carrying a balance (I had read otherwise).