throughout pg was very clear LO would have DP's surname. When it came to crunch i found it very painful when it came to crossing my name out. Am going to add my name as middle name which you can do easily within 12 months. Now wondering if I really wish i'd gone for double barrel after all (not keen in some ways but have talked to a few friends who like me gave their LO their DP's name and have found they mind more than they thought) - but adding a surname would be a bigger deal as would involve changing LO's name by deedpoll which seems a bit heavy.
So, in compromise, wondering if it would be silly to have my name as a middle name and sometimes use it double barrel style and sometimes not? or to use it as a full name even tho not official?