The SF E-Series TIR that is used in the E1B is a little wonder. Not a beauty, but simply one of the most amazing photon mangement systems available.
The spot is big and thorws very well and illuminates a much better field of vision that all reflectors I have met. Also, the spill is slowly fading in intensity from inner to outer zone, which is very pleasing to the eye and supports the spot in a marvellous manner as the inner regions of the spill throw quite well, too. The beam is not wide, which means it looses almost nothing to a broad and pale spill. All the light is used in a great beam. This one has one of the best beams available.
The Twisty has a reflectored beam in a classival sense and is difficult to compare. I had a 120 Twisty, and it got destroyed by the E1B.
The E1B also destroys my U2, U2A and L5. OK, to be fair, it doesn't destry them, but it is of comparable utility outside of not better. And it is a one cell light.
bernie