  Given the Astrophysical interest of $^7$Be$(p,\gamma)^8$B, there have been
several experiments applying the Coulomb dissociation method for extracting the
capture rate. Measurements at Michigan State are dominated by $E1$
contributions but have a small $E2$ component. On the other hand, a lower
energy measurement at Notre Dame has a much stronger $E2$ contribution. The
expectation was that the two measurements would tie down the $E2$ and thus
allow for an accurate extraction of the $E1$ relevant for the capture process.
The aim of this brief report is to show that the $E2$ factor in breakup
reactions does not translate into a scaling of the $E2$ contribution in the
corresponding capture reaction. We show that changes to the $^8$B single
particle parameters, which are directly related to the $E2$ component in the
capture reaction, do not effect the corresponding breakup reactions, using the
present reaction theory.
