No idea honestly
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Hello....I purchased another Dualshock 3 off eBay for under £10 and afterward sold my Nvidia regulator. You should be established however this is sufficiently simple to do and, as the regulator is associated straightforwardly to the Shield's bluetooth instead of through a USB connector, any chance of slack (for those worried about it) is taken out. I can vouch that there is zero slack.
Having put in a couple of days playing with this current, it's my view that it's by a long shot the most ideal method of messing around on the Shield. The worked in Sizaxis button mapper likewise permits any design a specific game requires.