Lets be clear about this, as appealing as Summer football may be in theory, in reality its introduction by the FA had more to do with marketing than improvement of standards!
Summer football has a number of major drawbacks for girls at CofEs.
Firstly it will always clash with exams. I appreciate that for the younger age groups this is not so critical, but believe me with a daughter currently trying to pack in revision, exams, training and matches, the only respite in sight is that the bulk of exams will fall outside the season. With greater emphasis on examinations due to kick in soon how many parents will allow girls to prioritise football?
Secondly, very few grass pitches will sustain 52 weeks of football. Summer is when most maintenance - re-seeding etc - takes place. Even the best pitches in our area, University/schools sports fields are either de-comissioned or put to other sports which take less of a toll on the playing surface.
Thirdly pitches suffer more damage in the summer than the winter. In the winter conditions are pretty uniform,ie cold and wet, but this doesn't really matter as far as the grass is concerned because it isn't the main season for regrowth. Our Summers however are relatively extreme, with dry periods interspersed with heavy rain which is particularly de-stabilising for the surface. Not a problem if the pitch isn't being played on, but if it is major long term damage can occur.
The only real alternative is more 3 and 4G pitches.