Synthetic Hair

So I'm still new to this synth hair. I have some clip-ins of some cheap
synth hair, they are really nice! I really like them!! So anyways, I had the
clip-ins just to add to my pro-tacs to make it crazy full and thick.

I've noticed the other night that I couldn't get my hair to curl, I don't know
if it's because of the synth hair, the Elite didn't seem to curl either. So I
didn't know if it was something random or if this is typical. Anyone have
problems heat styling synth?

I'm debating getting some cheap synth to put in for my vacation with my
elite and pro-tacs. Is it okay to mix HH and synth?

I just need it to last about a week, and I don't have time to order any good
hair (or the money ) . Anyone have any opinions or comments on
synth?

Should I just leave it as clip-ins? Or can I install?

I would not get cheap syth hair.  I'd only use plastik haar or Prohair.

I think some people here mix syth with human.