Craigielaw's Jane Turner has pulled out due to other commitments so her place has gone to rising Broomieknowe star Kate McIntosh, with Harburn's Arlene McGarty now first reserve.
The three-day event starts on Monday and Midlothian warmed up for their latest title defence with a 35-1 win over the Scottish University Golfing Society on Gullane No.2.