Some of the factory tops were pretty good especially with hard doors on them. I have a bestop on my 40 and sealing around the doors is the only real leaking spot. It doesn't matter if you hard doors or soft water is going to get in. The same with a 40, the factory soft top has a rigged frame around the door and that gives it something to seal to. Short of spending a couple of grand for an FST you are going to get some water.