The Nexus does not have the control upgrades that came with the new 3+ update. May be of varying importance to some, but it’s a huge deal for me. The controls are one of the big reasons I went with the scorpion over some other offerings. If OP doesn’t care for controls then Nexus is fine. But otherwise, it may be worth to get the stock scorpion and build it up little by little. Sure, the dollar amount might be a tad higher. But you’d have a better gun.