Bull trout expertise?

[LiveToFly]

I have been flying into a remote northern stream lately for some incredible grayling fishing. I have been spotting very large bulls (10-15lb)range at the tale out of these pools and runs. Every time a I hook a grayling... the bulls chase them in, obviously a food source. I have tried minnow patterns, large stone patterns, egg suckin leaches, and various nymphs. These big lunkers dont seem to be interested in the fly at all. Any suggestions on fishing / targeting these monsters would be greatly apreciated! Watching these huge trout pass my fly over and over again is just a lttle frustrating. Only 1 week left of fishing these guys.

[phearless]

Try large 4-6" rabbit strip type patterns.
Double bunnies , matuka, strip leech etc.
Colour sometimes makes a differeence as well.
Black, blue, natural grey/brown or perhaps charteuse.
Don't be afraid to mix white in with any of those.
Sometimes a large bead,barbell eyes or conehead makes a difference.
When fishing to them, try swinging your offering two or three feet above them, and just as it comes into their window, start stripping it away from them. Sometimes a slow strip but very often a more agressive strip imitating a fleeing prey item will get them going.
Works wonders at times.
Good luck.
Pics please

[patches]

if there in the tail out and the water is shallow , then try a mouse fly or a vole pattern . bullies will smash one on the surface if it is trying to skate it self across the tail out .like Phearless stated, LARGE leach patterns and the big bunny.

[mcameron]

Large intruders work as well. Same colours as mentioned above. I actually learned how to tie them at a gathering from members here. If the chance comes up again, take it!