I think the Primos is a great bow. I shot one before I bought my Firestorm lite. I like it so much that I set up my Firestorm much like the primos. The NV system literally deadens the bow. It's fast and smooth. Had it been a foot shorter ATA I probably would be shooting a Primos.
I'd shoot a few and see what feels best to you. If you end up with a Primos you've done well.