To start with it is not a low level GA but high energy GA. LLGA is a different ball game altogether. In high energy GA when thrust levers are brought to CLB the FG overspeed protection is available. Next speed target will be GD. It is necessary to logically understand the sequence of these activities. First you get out of approach into GA phase. TOGA does that. Second, expect SRS to change to OP CLB or ALT* in a GA. No matter what SRS changes to it is always acceleration phase and you should be anticipating to retract flaps to next setting. The first retraction is important because the VFE for next flap setting is 30kts away. Like in any aircraft always remind yourself what next. If you have to do anything else like reducing thrust etc. means you didn't anticipate the next action. It is only salvaging a bad situation and not smart flying.