They both have good cranks an either will work fine for you I went with the Assassin as I like to not have to take the crank on and off and the added weight helps me hole it steady better. Hope this help out side of the crank they both shoot the same.I am trying to decide between the Assassin 400td and the suppressor 400td with the charger EXT system. The internal system seams to be really nice and hopefully reliable but the assassin is 2 lbs. Heavier. I have put both up to my shoulder and they both fit well (the assassin is maxed out on length) but I do feel the weight difference. I was wondering what the charger EXT system is like to operate and use out in the field and is the assassin worth the extra $300.00 + .
Thanks for your help.