Using equity from existing primary residence?

[Daniella Lamis]

I've been reading about how to use equity from investment properties as DP for new properties but what about the equity in your current home? Due to low rates, we are refinancing our primary loan for our home and have approx $150-200K in equity in 3 years. Do we cash out some of it while refinancing right now? I haven't seen much about the +/- about using equity in your own home to fund down payments. Thoughts? We plan on keeping primary home as our primary or future rental, so long term investment. Thanks!!