That's interesting about the change in ridgeline. I got a similar result with my Hennessy after switching out the stock suspension with diy amsteel dogbones. I followed the exact same wrapping pattern as the stock suspension with the dogbones but somehow the end result yielded a more loose mosquito netting. I haven't proven this, but my suspicions are that the end loop on the ridgeline was able to slide down the amsteel, resulting in it behaving as if it was longer after the suspension mod.... This would explain the loose netting, since you would be pulling the hammock ends further away from each other and shortening the distance between the ridgeline and the hammock. However, this would also tighten the netting along the length of the hammock, and I'm not sure I've noticed this on my hammock.
Also, have you noticed a different lay in the hammock after the suspension change?...increased calf pressure in the centerline perhaps? I think this happened to me as well, which would also result from a longer ridgeline.