I don't have the sport, but used to have the regular model D and now have the model A. The model A is supposedly 1" longer and the cup material is supposed to be stiffer, but I honestly see no difference between the two. I have hit or miss success with mine, but like it much more than the peecock. Packing it is a bit different. For me, I usually turn it sideways and pack against my pubic bone like normal. You can also pack with it lined up with your bio dick, so that it points straight down. This one tends to look "excited" so I don't usually pack that way. I find the bulge adequate and sized correctly with model A and D, not sure if the sport would be a bit small or not. I never tried the harnesses they sell, just wear a jock strap or briefs. You may want to keep an eye on the packer locker website, they sell all 3 there and they are much cheaper than ftm essentials or the #1 lab Etsy page. Hope this helps, feel free to shoot me any questions!
