The last Gatorskin tire I put on was pretty easy. I laid it out on the driveway for the afternoon on a pretty hot day and used talcum powder on the tube. Next day it went on fine. Having worked in a bike shop some 50 years ago, I knew to never use any levers to mount a tire. That’s a sure way to get snakebite holes in your tube. Garden gloves and patience can help man handle the tire onto the rim. Just keep after it.