So I got my 750GS on Friday and put it in the centre stand yesterday to fit engine bars. I was apprehensive that it would be very difficult to put onto and take off the stand... however it was no harder than a 1200GS and certainly much easier to get off the stand - I found the 2018-on 1200GS very hard to get off the stand, almost as if the stand is too long.
The 750 stand is also quite meaty and the bike feels very secure when up.