Ralph Cutter's EC Caddis

I have been told by many that Ralph Cutter's EC Caddis is there go to
fly. In looking at the fly it seems to be a basic elk hair caddis but
with a parachute hackle. Anybody got any instruction on how to tie
the parachute onto the fly? My problem is do I tie it on after the
elk hair is tied on or before. I tried it both ways and it is
cumbersome to me . Maybe it is just a new technique for me but was
wondering if someone had a better/good way to do it.

Thanks

Allyn