I always wondered why the Skyray didn't get more praises from BLF members, when it came to build quality. I would rate the old DX ones (host only) very good and the LT one only mediocre, because of the thin walls on the tailcap and the contact problems. On the other hand, the dropin which came with the DX one only lasted less than a month, due to a burned driver. The imprints on the lights are the same Sky-Ray....Hot surface... The only way to tell them apart from the outside is the length of the grooves on the tailcaps.
I have the same tailcap grooves as your DX 2010 one, but the switch internals seems to be as your LT 2011 verson (black cap), unless you mixed up left and right the the lower pictures.
The one I got from Manafont is the same as the LT one. I've never had any issues with it. Mine tailstand perfectly, the button does not protrude although it is as close as it can be. I can see that there could certainly be variables there. It has a nice snappy button too. It seems to scratch very easily also.
Damn should have ordered at Manafont , they seem to be better and cheaper.
This was the DX Version ordered on 02/26/2010 ... advertised as XP-E R4, but came as an XP-G ..probably R5 .... man DX hasn't updated this mistake in over a year.... overall still the best 1*18650 host body for a bike light together with this bike mount, when the first rubber ring is removed.
Its funny how thatL2i will grow on you. Im really loving mine. I even just ordered a new black one. I think my perfect light would be a 2mm longer L2iP.