I have both. I have the RCF which i ordered from tarantula canada. It was my first tarantula and i got it as a sling. I am extremely happy with it. I got a 4 inch NCF from my local pet store. That pet store is nasty, when i bought it, they gave it to me in a plastic unwashed cake container that still had cake crumbs in it. Talk about unprepared... I went back a few weeks later for crickets and the other tarantula was dead...Definitely not molting, it was death curled. Never going there again... The 4 inch specimen is very aggressive and i have no interest holding it. The RCF sling is awesome and extremely docile, it's the only tarantula in my collection I hold. Either way, they are both beautiful.