Dormer flashing/wrapping

[bluebellcottage]

Hello,

 

I have a question regarding the flashing/wrapping of our dormers. I understand how a dormer should be flashed if it’s in the roof I.e lead corners and a lead apron however our dormers run in line with the wall on the house so I can’t see how this would work and can’t find another detail for it.
 

Currently I have run the soakers right down to the bottom of the slates with a view to cutting them down so that water doesn’t run off the side of the roof. I understand this is probably wrong but it seemed like a good idea at the time. The pen line marks where I had planned to cut the soakers (or possibly a little lower)

 

any advice would be very much appreciated.