It will also be the last game, as skipper at least, for Danny Boatman who has somehow managed to juggle considerable family and work commitments to lead the side from the front in the past few seasons.
Iain lost the toss up for home advantage when he and Mowden Park coach Danny Brown sportingly spun a coin via the video on their iphones.
The game comes in the middle of the County season, but both clubs have been able to secure the services of the lads who enjoyed a 62-5 win against Cumbria at the New Friarage last week. That's fortunate as work commitments rob us of Anth Carr, Aaron Myers , John Bunter, Will Hilditch and Rob Thorn.
The absences provide an opportunity for lads who have been doing so well for the Stags in recent weeks - Alex Key deserving his start in the front row and Andy Turner back in a familiar back row position after injury forced him onto the wing a few seasons ago.
The County Cup allows for seven replacements which will give an opportunity for promising front row Scott Coull to make his first team debut having turned 18 a few weeks ago.
West (meet at DMP at 6.00): Zac Southern, Luke Mallinson, Liam Checksfield, Peter Youll, Joe Willis, Gavin Painter, Ryan Painter, Alex Key, Andrew Rollins, Adam Coates, Joe Rafferty, Dan Boatman (capt), Andy Turner, Lee Maddison, Sam Miller.
Changes: Ross Wood, Scott Coull, Jay Corbett, Adam Brown, Matt Siddle, Paul Moss, Alex Barker.
DMP: Josh Bragman, Shaun McCartney, Ben Frankland, James Fitzpatrick, Adam Radwan, Garry Law, Chris Auld (captain), Darren Fearn, Chris Wood, Ignas Darkinitis, Talite Vaioleti, Dan Preston-Routledge, Joe Craggs, Callum Mackenzie, Simon Uzokwe.
Changes: Mark Bell, Adam Brocklebank, Rory Duff, Callum Burke, Alex Dunne, Mike Wood, Tom Kill