Well i did quick test with TIR5. There absolutely no issue with non 1:1 tracking and this HMD but there is a bit lag even in TIR5 and it really is bad with HMD so i think close to zero lag is needed. TIR5 is ok with slow movement and it feels so good and natural even without 1:1 but fast movement is something you do not want to do with latency high as this(even it's quite low with TIR5). There is also NO issue with screen go of focus when moving head, i did not get it out of focus no matter how fast i moved my head and did sudden stops, it will not move when fitted correctly. I will do some more testing and try to adjust TIR5 to see if it helps(maybe lower smoothness give faster response?)...Image quality is very good but pixelgrid is visible sometimes. It does not fit my head too well
