hey gentleman how ya doin??? what your sayin is right on the mark,just spent the week in mexico and just wanted to comment on those temps you mention and how screwy they were...at the beginning of the week we were gettin 41 degrees 35 down over 70 and move out a bit to 85 fow we were gettin 47 degrees...once we hit 50 feet on the probe it was back up to 65 degrees...overall it was a tough pick for us,of the four days we fished we boated 13 coho and lost 4 as well as another 6 or 8 releases. we worked for them,we were out 8 or 10 hours a day. amazing that we never hooked into a king.unbelievable what those coho do to your gear...most of the flies were not useable after nettin the fish,broken and open swivels,straightened hooks and even broke a release...anyways,best water was70 to 80 fow just north of the big salmon...good luck out there..........