We've used only Series 1 BLE modules and now examining the Series 2 modules.
The newest BGM220PC22HNA2 module has significantly better RX sensitivity and radio current consumption values compared to the older BGM13P22 and BGM210P modules. The most curious one is TX Current at 0 dBm, which is 8.5 mA for the BGM13P22, 16.1 mA for the BGM210P and only 4.8 mA for the BGM220P. The power is the same, so how this difference can be explained (especially difference between two Series 2 modules) and how does it affect the radio performance of the modules, e.g. does it lower the range? In other words, at what cost does this reduced current consumpion come?