Robbie Fergusson started and George Horne and Andrew Davidson came off the bench as Scottish opened their campaign with a 27-25 bonus-point win.
The three Academy players have joined Scottish on a loan basis.
Ayr go ten points clear at the top of the Premiership with a 32-10 win over Boroughmuir at Meggetland. George Hunter was among the try scorers in the bonus-point win.
Two second-half penalties from Gregor Hunter wasn't enough for the win but saw Hawks gain a bonus-point as they went down 10-6 to Melrose at Old Anniesland.
Nick Grigg scored a try as Stirling County got back to winning ways in the Premiership with a 31-21 win over Selkirk at Philiphaugh.