Is it safe to carry an appendix holster on your 9 olock?

Left hander here. So I recently bought a tier 1 xiphos elite for my glock 19 and I like it alot but it also feels very comfortable on my 9 clock. It there any safety danger for me to wear it on my 9 and not appendix? I'm a hefty guy too I would prefer to use it on my 9. via /r/CCW https://ift.tt/gUKqNCB