Thanks. I've ordered a medium from CRC - £126 with the BC discount. Will hopefully be ok if the Large softshell feels 'too big'. I'll keep the latter for commuting or properly cold rides.
Looking forward to some colder weather to try the Gabba out now...
I have both. I'm small in both. The softshell has room for a thick baselayer or similar - I only use it bellow ~6° really.