Any tips on getting more child time from an vindictive ex?

[kitten]

reduce time voluntarily or miss any visits!  It WILL bite you in the a$$.  Forget about whether or not she uses you, that is a non-factor.  Time with your child is all that matters. Use every moment you can to bond.  DOCUMENT it all!  HELP your ex with things like DR. visits or anything that may interfere with her job.  Build relationships with teachers, Dr.'s, Dentists etc.  Let your ex think she is using you.  Be super-dad and document it ALL.  

[kitten]

reduce time voluntarily or miss any visits!  It WILL bite you in the a$$.  Forget about whether or not she uses you, that is a non-factor.  Time with your child is all that matters. Use every moment you can to bond.  DOCUMENT it all!  HELP your ex with things like DR. visits or anything that may interfere with her job.  Build relationships with teachers, Dr.'s, Dentists etc.  Let your ex think she is using you.  Be super-dad and document it ALL.  

[FLMom]

Now comes the Jedi Mind Trick:

If you are friends with any of her friends, or know someone that knows
her, it's time to play matchmaker.

Hee hee hee.

Gee, she'll suddenly realize that she can have a life if she only lets
kiddo have a little more time with dad. I'd keep everything you have
now, and just make an "aw shucks" offer that you wouldn't mind if
she ever wanted a little extra time. Dad=free babysitting.

Then, after she meets someone, make sure you get to know him in
a kind of behind the scenes way. Shake his hand, send a (whatever
the nearest holiday is) gift of whatever makes his world rock--cigars,
golf balls, fave liquor, whatever--in appreciation for being in your
daughter's life (yeah, you're gonna be gagging but sometimes you
just gotta bite the bullet).

Her being an idiot about kiddo will then become embarassing.
Saving face in a relationship=more time for you.

Just a thought. I've seen it work.