Here you go, all of my CLIs and corresponding balances on statement cut. Opened Jan/2015 with $2,500:
2/2015: $120
3/2015: $80
4/2015: $161 CLI $500 (don't remember exactly if it was after/before 3rd statement)
5/2015: $216 CLI $1,000 (after that month statement)
6/2015: $778 CLI $1,000 (before that month statement)
7/2015: $2115
8/2015: $1057
9/2015: $544 CLI $3,000 (after that month statement)
No auto-CLI ever, all user-initiated and SP. Let us know what your findings are!