Static rope toprope anchors....I know, I know...but?

I understand the method, but The only item that makes me leery (and this is probably a really dumb question). With a cordelette or webolette you typically have three points of protection and limited extension. With two boulders set back twenty feet and a static rope brought to a BHK for your master point. What protects from anchor failure? wouldnt you encounter a huge swing if one

Your anchor needs to be strong enough for the job it's doing. If two giant boulders provide that strength, then you don't need a third piece just because.

Don't run the static over sharp edges and it should be fine.

Have fun climbing.

I fully agree with Rob. Keep in mind that your angles from your BFK to you two boulders or trees shouldn't be more than 90 degrees. Be safe out there!