Free: Contests & Raffles.
I’ve always heard they are the same glass? Heard the only difference is EL means, extra light, as in less weight?? Either way, every eye is different, I tried multiple brands, el’s, slc’s, and my eyes just seemed to love the slc’s. The money was a factor, but honestly, my eyes just felt better looking through the slc’s.
O trust me I've considered the NL Pures . That's a tough pill to swallow though. The used market isn't as abundant with the Pures as the ELs.
it’s all good and you aren’t gonna spot any more critters going from one to the other.