Practice based or theory based?

OK.........so the project is taking a different tack.....again!
My research not longer requires me to support it with practice, I shall be doing a theory based written piece of work that stands on it's own. This means that instead of taking photos and producing an exhibition piece alongside my 12,000 word thesis, I will produce a 30,000 word thesis and no supporting practice work.
This is a relief because I've been struggling lately to find an adequate reason to produce practice based work that will adequately support my written work. My argument does not need supporting with practice any more.
I am in the process of revising my proposal to reflect this change.
I'll keep you posted!