Is it better to get a HELOC after your refinance from an FHA ?

[Redgy Saint-Germain]

Hey guys, 

I have a property with a 30 year FHA that I am trying to refi to a 15 year conventional. My monthly payment will increase another 600/month but I would build about 15k/year equity as opposed to 4k/year. I have over 110k in equity in the property and want to use that money to jumpstart other rental investments.

Is it better to refi first ? How hard is it to refi after an HELOC

Thanks