ITCZ
Do you not set your TCAS to look ABV or BLW when climbing/descending to show targets at greater than 2700' sep
If I can! Unfortunately BA have acquired some 737s which have only 2700 look up and down ie no above/below function - and they are a right pain! Hence the reinforced need to limit climb rates. Even reducing ROC to 1000fpm at the end will not help here, because 2700 is not enough at ANY stage to give time to react to traffic which suddenly appears.