Reuse of Port types

we have a A.btproj which has port type AcctPort which is a webref or a soap adapter port.

we have a B.btproj which refrences A.btproj, Now when i need to create a port in B which is of same type AcctPort. can I reuse A.AcctPort .

Is there any disadvantage in this..

I guess the advantages here are ,

  1. less number of bindings at runtime.
  2. OOPS programming
  3. Reuse of PortTypes
  4. Change at one place