All the G series and GMax series poles along with the newer “slap happy” versions (C series?) will take the Top Kits. Not sure about the Premier Legion or the Squad poles, but I guess these aren’t what you’re looking for if moving from a SL.
I used my original Power League kits on the SL and then on a Super G8 and now on a GMax 1000.
For what it’s worth, unless your SL joints are gone, there’s little point on moving to a Super G8, as there’s virtually no difference, but the GMax 1000 is definitely a step up. Don’t know about the rest of the GMaxx series, though.