so after giving some thought to this, I have come to the following conclusions,
1) air layer the back branch, no point wasting 7 years of growth.
2) thread graft up the trunk to fill in the gaps
3) chop about 2/3rds of the way up and thread graft a new leader to create some taper
I have some nice material I can use for thread grafts. One of the ficus' I trunk chopped has about 8 new branches which are about 500mm long.
Question: if I thread them through, once they take, can I cut them and they still be used on the host tree? I don't see the point in cutting them back and wasting the growth if I can use them for thread grafts first
Question: when can this be done.
Lately I have found myself looking at my trees in a different light. Like, all of my trees can be improved, most of them really need a lot of work to get them to where they should be. I also can see the mistakes I have made from a long time ago(well about 7 years since I started). I WOULD have some really nice Bonsai if I knew about this forum way back when...

I am at the stage now where I want to start getting serious about my current stock and also looking to get some new stuff started, ie, Bonsai nursery stock that I can shape and develop and some yamadori.
I would like to thank everyone who has given me advice so far, and thank those who created this amazing forum.
