"Generally" drysuits tend to need "heavier" fins (actually denser, more negative - dry weight is not directly the issue.) The air in the legs and socks/boots of the drysuit tends to make for "floaty feet" compared to wetsuit diving.I am getting into dry suit diving this summer and will need to pick up big fins. I love my go sports, will their buoyancy be an issue? I just assume order a XL but am not familiar with the nuances of dry suit. I will be traveling to cold water areas for work.
But YOUR details are what matter ... What suit, socks/rock-boots or integrated, what undergarments, what bc/plate-wing, what tank(s), what weighting, your body morphology, your kick style(s) - it all adds up to dictate your center of buoyancy. If you are well balanced without fins then a neutralish fin is what you need, headstands - you need some negative fins, etc.
From what I understand of the Go Sports (light), you might be well served to get in pool rigged up in your drysuit and see how you balance before pulling the trigger on what fin to buy.
Fit is another complication as footwear style makes big difference in foot-pocket size/form compatibility.