I trained at Airways. CPL in Oct /Nov - wx was pretty good - maybe I was lucky
3 wks. Took the IR straight after (Xmas break inbetween), finishing Feb. Don't get too roped into the weather considerations. The previous post highlighting the 100' AMSL at Exeter is helpful.
I have heard good things about Bristol as well as many others posting here. Would also recommend a personal visit to both schools.
I would wholeheartedly recommend AFT based upon my experience. Very good atmosphere, experienced, capable instructors. PM if you like.
All the best for your training, wherever you choose
LF