GBP/USD maintains earlier gains, as Powell was mute about comments on the forward rate path.Momentum favors sellers; RSI near 50 hints at decreasing bearish pressure.Support levels: 1.2612 (June 27 low), 1.2600, 1.2563 (200-DMA).Resistance points: 1.2709 (July 1 high), 1.2739 (June 19 high), 1.2800.