This is why I tell people to buy a F04 diffuser for their TIR lights, particularly the E1L, E2L, and L1. It will make the light. The "Outdoorsman" designation for a light with a small, cool-tinted spot is a pet peeve of mine. Without a diffuser, these are the total opposite of what an outdoorsman would want in a light.
The F04 is $14. Get one and try your bathroom test again
I went to the surefire site to pick up the diffusor, but according to their site the F04 is for the E1E, E2E and E2O, whereas their, bulkier FM57 reflector-- which looks less attractive to me, is billed as fitting most of the E1's and E2's, including the E1L.
Just want to check that the F04 will fit this thing (the E1L).