Bind Vestige chain

[lans]

The three feats are nice for their level,  I feel the chain can be expanded.

Master Binder, Character level 9
Prerequisites: Practiced Binder
Benefit: When you bind a vestige using the Bind Vestige
feat, you gain the full benefit of the Bind.

Greater Binding
You can bind a wider range of vestiges.
Prerequisite: Bind Vestige,Bind Vestige, Improved, Character level 12
Benefit: When you bind a vestige using the Bind Vestige
feat, you do so as though you were a 10th-level binder.
Thus, you have access to vestiges up to 5th level, though
you still can bind only one at a time and gain only one
power from it.

Master Binding
Prerequisite: Bind Vestige,Bind Vestige, Improved, Greater Binding, Character level 15
Benefit:hen you bind a vestige using the Bind Vestige
feat, you do so as though you were a binder of  your character level.
Thus, you have access to vestiges that a Binder of your level would be capable of binding, though you still can bind only one at a time and gain only one
power from it.

Thoughts? I will put the two powers from Master and Greater Binding later.
Or add Master Binder as a prereq to the other feats
                    

[lans]

I'm adding Character Level 9 to the prereqs for Master Binder.

Normally it would go 1st Bind Vestige,  3rd Improved Bind Vestige, 6th Practiced Binder, 9th Master Binder. So at level 9 any class would have full access to third level  binds, but Humans set master Binder back to 6th, and flaws set it back to third, together its 1st. That is my reasoning.

I'm considering making the prereqs for Master Binding Character Level 18.

[lans]

Link to my thread in another place, some say a better, more magical place. A  place full of sunshines and unicorns.

http://www.giantitp.com/forums/showthread.php?p=8572410#post8572410 

Edit: Some input would be appreciated.