Depends how exactly you've been training. Taking into account that the girevoy sport is a specific competitive discipline endurance inclined, and hardstyle is a training method, highly effective per se, there is a carryover for sure. After all, where from Pavel brought it...
Just to reflect my idea of the carryover, and how I experience this, the higher I go in weight with A+A snatches in 40-50 minutes sessions, the easier are my strengths-endurance efforts with lighter weights and very compressed rests (mostly things that gied off my training logs). If we leave aside the technique differences, the programming of the work-rest intervals is big thing. The closest thing to GS I aware of in the hardstyle is Kenneth Jay's vo2 max 15/15 snatches - programming-vise. Adjust it to 5/5, "soften" the technique - you're in GS. Very roughly of course.
All of a mentioned are my subjective thoughts, I'm just interested to participate in the discussion.