I thought our 3113 BayStar (no longer have it) was the only model with this problem (I would call it a design issue). Several of us performed this modification to both allow the driver seat to go back several more inches as well as to help prevent the slide from taking out the seat (which some said happened).
See this thread:
Post 232 on page 17.
Not sure if this is a possible modification for your DS, but thought I would toss it out there. It worked for us and was not that tough to do.
2017 3113 NewMar BayStar, Safe-T-Plus, RoadMaster SB, SuperSteer TB, Koni FSD shocks, CHF Rear, Sumo Springs, Centramatics, EEZ TPMS, King TailGater, LED Headlight kit, EMS-PT50X, Adjustable arm-rests, MagnaShade, 2017 Cherokee TrailHawk Toad...
And Tucker - [SIGPIC][/SIGPIC]