Your right, to all beginners out there its OK to grab a piece of normal everyday fencing wire from a hardware shop and affix "appropriate weights" to your balanced rig permanently, no need for trim pockets. Who needs to ditch if you have two low pressure inflator hoses and bladders to your BCD. A good place to wire up such weights on this configuration is to the short spg hose with wireless transmitter he has dangling off the right tank like a Christmas decoration.
This is far better solution because on this rig the $250 wireless transmitter can double as a $20 tank banger. No need to screw the transmitter directly into the first stage out of the way from damage.