Girth gainers

OK folks! I started my trajectory in PE a little over 1 month ago, since then I have gained 1.3 cm in BPFSL, 0.5-0.7 cm in NBPEL and around 0.5-0.7 cm in EG (from 12.5 to 13.3 cm). I would like your opinion on circumference gains.

What did you notice that was different and what can you report about the member’s quicker response in terms of quicker nimbleness in thickness?
I started holding yesterday (ULI 2x 5min), but my earnings came from JEQL. I would like to speed up/optimize the gains in thickness, as my goal is quite ambitious (15cm EG).