I managed to get the Sinden Lightgun working with this device, it is compatible with the Raspberry Pi software I have written. I tested with ORA RetroPie.
Really I was looking for what I can do on this more powerful device that I can’t on the Pi in terms of Lightgun games.
So I can do everything I can do on the Pi but in addition I have managed to get Point Blank 1 Arcade running full speed in Mame. Time Crisis is still too slow unfortunately although it is faster. A couple of games that were playable before still got a good performance improvement such as Alien 3 the gun.
I do think it might be possible to get Point Blank 1 Arcade running better on the Pi, I might just be missing the perfect version of Mame required, so I’ll continue to look at that.
The XU4 has Sega Saturn, Naomi and Atomiswave support which will be great for Lightgun games if Lightgun / mouse support was added to the emulator. Hopefully that will come as it would unlock a golden generation of Sega Lightgun games including Virtua Cop 1/2 and House Of The Dead 1/2.
So at the moment no strong reason to upgrade if you are mostly interested in Lightgun games.