1. traffic ho (cause 23), ho margin, forced directed retry, link factor, load factor, and the best for the end : FAST TRAFFIC HO !!! The BEST !!!
2. yes, when you activate general capture on cell B, with l rxlev cpt ho (b, a) > -110dBm, you must disable PBGT HO (cause 12) on cell A. Otherwise, it will cause severe pingpong HO.
To exit cell A, you cannot use PBGT HO, so you must use another HO cause, such as LOW LEVEL DOWNLINK (L_RXLEV_DL_H = -85dBm for instance)