We describe the application of a new method for the determination
of charge and track parameters for electrons and positrons in both central
(pseudo-rapidity 0 < |eta| < 1.2) and forward (pseudo-rapidity 1.2 < |eta| <
2.3) regions at CDF.  The method uses the shower centroid position in the
calorimeter in combination with a track in the inner silicon vertex detector.
The use of the central tracking chamber is not required.  A comparison of the
shower centroid in the calorimeter, with the extrapolated silicon vertex
detector track determines the electron sign.  This technique has been used to
measure the W asymmetry in CDF in regions beyond the pseudo-rapidity coverage
of the central tracking chamber.  Application to other Physics analyses in
current collider experiments at the Tevatron and in future high lumimosity
experiments at the LHC are discussed.