The Devils travel to Edinburgh for the first leg on Friday with the decider at the St Boniface Arena on Saturday evening (7.15pm).
They will have Newcastle’s Steve Worrall guesting in place of Charlie Gjedde in the away leg with former Plymouth skipper Ben Barker taking over at number one in the return leg on Saturday.
Team manager Lee Trigger is still looking for a permanent replacement for Gjedde but says: “I am quite happy with the guests we have for this week. Steve is flying at the moment and he will ride for us in our Premier League match at Redcar on Thursday and the cup visit to Edinburgh the following evening.
“I am sure he will prove a good choice, especially as he was an Edinburgh rider a couple of seasons ago.”
Barker is always a popular visitor to the St Boniface Arena, having ridden for Plymouth in the 2011 and 2012 seasons and again in 2014.
Plymouth have named skipper Kyle Newman in the number two spot and will operate the rider replacement facility if he has still not recovered following his recent injury.
As far as the cup clashes against Edinburgh are concerned, Trigger said: “If we don’t come away from Edinburgh with a win, we will look to run them close.
“It would be good to restrict them to a lead of eight points or less. We have shown that we can cope well at home, but I don’t want to leave ourselves with too big a task. We want to keep the tie alive, especially for our home supporters.”
Edinburgh will be spearheaded by Australian Sam Masters with the main support coming from Kevin Wolbert and American Ryan Fisher, who rode for Plymouth last season.
Plymouth (home to Edinburgh ): Ben Barker, Kyle Newman, Jack Holder, Todd Kurtz, Sam Simota. Reserves: Stefan Nielsen, Ellis Perks.
Edinburgh: Sam Masters, Erik Riss, Kevin Wolbert, Jye Etheridge, Ryan Fisher. Reserves: Max Clegg, Dan Bewley.