Ideas Please!!! The Merriams I'm calling don't come a-runnin'!

The scenario:

I hiked in to my set up spot on Saturday an hour an half before first light - 2 hours be for sunrise in the mountains of central Idaho (about 4400 ft.) What sounded like the Boss-of-the-Woods sounded off @ 5am at the crunching of my feet on the snow pack - he was over a 1/4 mile away! I made my way another 150 yds over the next 15 minutes, while he continued to sound off, being as quiet as I could be and then sat for about an hour. The Boss gobbled continuously.

I was about 200 yards from the roost, about 60 ft below an opensaddle I knew he had been working. There is a long open meadow up to the saddle with steep timber cover on both sides rising over 200 above the surrounding area. I would be difficult to get above him.

I did call at about 6:30 - a half hour be for sunrise (Very soft tree calls). He belowed from his limb. I stayed silent until 7 while he continued to sound off. I heard him fly down. I called softly and sparingly for the next hour always getting responce.

I then move back into the woods and called again, he responded I move further twice more, he respond both times - I thought I heard a second bird - closer to me, from the same direction, but the Boss cut the second call off immediately, gobbling excessivly.

I moved back to the set-up, and sat stone quiet while the Boss gobbled.

After 4 1/2 hours of this bird and I at a stale-mate I got impatient and decided to try to get above him. When I did - the second bird I though I heard blew up - about 60 yards out - and ran away.

I waited for anouth 1/2 hour while the Boss continued to gobble - with no movement towards or away from me. The I decided to try to get above him. I spent 30 minutes going 200' up. and ultimately bumped him away.

Aside from waiting longer - what could I have done differently?