Morton booked their place in the Co-operative Insurance Cup second round after hammering hosts Stranraer.
Ryan McGuffie put the visitors in front after five minutes before Brian Wake's 12th-minute strike doubled the lead.
Ian Russell's brace put the visitors further ahead and though Craig Frizzel pulled one back, Erik Paartalu volleyed in a fifth before half-time.
Stuart McColm and Andy Gibson reduced Morton's lead only for Wake's second to round off the scoring late-on.
Stranraer: Black, Kane, Creaney, Dobbins, Nicoll (McColm 46), Mitchell, Gibson, McBride, Osbourne, Noble (Murdoch 46), Frizzel (Paisley 68). Subs Not Used: McKinstry, Budinakis.
Booked: Kane, Creaney.
Goals: Frizzel 37, McColm 72, Gibson 84.
Morton: Cuthbert, Weatherson, Walker (McManus 59), Shimmin, Paartalu, McGuffie (Kevin Finlayson 77), McAlister, Masterton, Wake, Newby, Russell (Harding 65). Subs Not Used: Kerrigan, Stewart.
Booked: Wake, Shimmin, Masterton, Walker.
Goals: McGuffie 5, Wake 12, Russell 23, 32, Paartalu 40, Wake 85.
Att: 317.
Ref: S Finnie.