The RVS Creamer 2 frame can swing 5.5" props and has excellent fit and finish that screams quality. I highly recommend the frame. It deserved some super smooth motors so I chose the Bison's for their hugemongous 11mm bearing. The combo does NOT disappoint! I love my Sessions and this setup carries them like they aren't even there. It has no problem carrying the heavier GoPro's also. This rig flies extremely well and has become a personal fav of mine, ... but everything has a price.... ;)