Hi Guys

Any thoughts or ideas on the dark highlighted section in the pic. I have been tasked to model a similar sort of custom item for 3d machining by one of our clients and I can manage the smaller sections using lofted profiles on seperate planes but getting the 'snail shell' end section is pretty much driving me to drink

I am not looking for anyone to do it for me but rather a few pointers or ideas from folks that might of done something similar and which would be the best direction to take..

Cheers

Kevin