As the E175 and E195 are stretched variants of the baseline models, I guess they are more challenged performance-wise when operating from LCY. The E190 also requires some mods that result in a new "SR"-subvariant (the E170 only requires a software modifivation).
Don't see BE operating from LCY anyway. If LGW has become too expensive for them, how could a move to LCY make sense? LCY is - allegedly - one of the most expensive airports in Europe.
Last edited by virginblue; 24th May 2013 at 21:03.