I have just been given a dozen bachmann dcc turnouts. But I have a dc layout with Bachmann turnouts.  Is there a way to modify the dcc turnouts to operate well on my dc Layout?  My existing turnouts are all #4 (for yards) and #5 for mainline: medium sized layout: 9' X 12" plus a 4' X 4' dog leg (L SHAPED). Thank you in advance for you help.  Robert