Mark I would have to say that I have both of the mods that you listed and I have to say that I absolutely enjoy them both. I don't have much bad to say about the Kamry 101, its fits different battery sizes and the way that the button throws is flawless. I never have firing issues, the treads are super smooth and even though it's primarily used for sub ohm attys, you can use multiple bottom coil tank systems on it as well. only problem with that is that mec mods are unregulated won't be able to adjust the Volts or Watts and you will only get what the battery puts out depending on the charge. I only use rebuildables now so i can adjust what i vape without the need for VV/VW APV'S. Now on the Valkyrie clone, man when I first saw it I had to have it. its shorter than most mech mod setups with an 18650 batt in it. If I were to get a hybrid, this was gonna be the one. With that said, it does have some down falls. you never wanna drop the Battery cap. Although this hybrid has some of the finest machining, if you drop it, it will warp the lip and will never thread right again. Ive been lucky enough not to ever drop mine, but I also know that I never want to. if you choose this one, hold the battery cap and spin the battery tube to keep from dropping the cap. You won't drop the tube. Also, they eventually will have hot button issues, for me after the 1st day. You"ll have to sand the contacts with a 4000 grit sand paper so that the contacts will connect properly and wont arc, causing the hot button. After I did that I never had a hot button issue again and amongst all the trouble at first, it is still my favorite mod I ever owned. I use it every day, along with my kamry k 101 with the forge or kayfun on it, both with two separate flavors for the day, but the Valkyrie is the one that impresses people the most. The way it looks, the way it feels in the hand, the throw of the button and the way it vapes. The airflow control is amazing and has all the variables to find your desired draw sweet spot. Well I hope that wasn't too much info to help in you decision. New to the forum, 14 month vaping. Good luck with your decision.