Ok so this Keis J505RP Premium Extreme heated jacket is a game changer and well worth the £200.
I'm using it on hot for the first minute or two, I then reduce to medium while Monty's heater warms up, from then on it's down to the low setting.
To me a Morgan makes most sense with the roof down, and this jacket is going to significantly extend my top down time in the car.
Happy with that
