Have fun pulling your bladders in a one pump when you're kiting a remote location with no opportunities for submersion testing or bladder soaping. Thanks but I'll take the simple standard inflation given the choice.
pump up the kite put some clothes pins on the one pump tubes. Note which strut goes flat. Inflate that strut again, soap the strut (don't pull the bladder yet). Note where the bubbles come from. Using a big sharpie or other marker, repeatedly mark the location of the hole. Make sure you ink it good. The ink will press through the fabric and leave a mark on the bladder. Pull the bladder and patch where the mark is.
The whole process doesn't take more than 5 minutes. You want the hole marked before you pull the bladder. I agree it is a pain if you start pulling bladders on a one pump before you know where the hole is especially if you start pulling bladders before you have isolated which strut it is.