The vlocity Jr is a good hopper but the size is not much different from the standard vlocity. The weight difference between the two is not the smaller shell (couple of grams at most) but is the amount of paint you can hold (180 in the jr) The blitz chip for the vlocity standard and junior is a good idea, because for £86(vlocity jr and chip) you can have a hopper that is smallest, lightest, equal capacity, arguably fastest and with multiple modes and auto + manual anti-jam hopper or get a Pulse with RF chip for £135. Thats a whole £49 price difference. Or a Reloader B2 at a £29 difference.
My verdict is that vlocitys need to be considered a lot more.
Nathan