A couple of things I guess, first of all thank you for all your lovely comments and suggestions regarding my silk dilemma
#1 thinks that the dark blue is too bright and she would prefer an even darker blue. Everyone likes the light blue on my niece so we are likely to stick with that. #1 and #2 are going to visit some fabric shops with my Mum and Dad who are down to visit next week so that they can get samples of dark blues to send to me. We will then think about pricing for buying new fabric vs dyeing the fabric.
Received a sample of my wedding dress fabric and I'm very pleased with the colour - funny how memories and pictures on the internet distort things in the muddled mind of a bride-to-be.
Secondly the big parental meet up. You were of course correct it went fine. They were all very civil to each other, on their best behaviour and nobody did anything too embarrassing. Don't think they'll be best friends but that isn't really necessary. We went to our venue for a tour and for dinner. Very relieved that everyone liked the venue and that the food was wonderful! I've been questioning every single decision I've made for this wedding so I'm glad that I'm still happy with the venue. My Mother-in-law described it as quirky and relaxed - bingo, I love that woman.
Thank you again for all your sane rational thoughts and comments they mean a lot to me.