Sinden is probably the premier gun, but for twitch precision moments it only has 60hz ir sensor tracking vs Wii (30-60hz) and ps move (30/60/120 on ps3, with a 240 mode on ps4). It has similar or better accuracy as the 10 point LCD IR trackers found in 2000s/2010 arcade cabinets thanks to its border based positional tracking software, but no internal IMUs, magnetometers and the like. In some theoretical best possible scenario cases, a Wii or Move system could outperform it, but that mostly doesn't matter for 2D-space rail shooter content.
With a Vive or Valve Index kit, you get 1000hz IMU/500hz transmission/60hz+ correction/software processing lighthouse tracking. Who knows how much of that is exposed in programs like EMUVR for old 60hz crt content.
