Apart from going in there with signs, wonders, and miracles and other operations of the Holy Spirit where the layman is concerned, while sharing line upon line and precept upon precept through the Bible, it's pretty much a waste of time to deal with the layman anyway on UR, unless the Holy Spirit really spoke to you about it. Pastors need the same signs and wonders of the Holy Spirit, so don't misunderstand me, but they're going to be the ones that will have spent more quality time with the Scriptures -- one would hope (and I realize I'm speaking very generally regarding that) -- than your average layman.
The fun ones to really pick on are specially anointed Apostles, Prophets, Evangelists, Teachers, Healing Evangelists and Workers of Miracles, Administrations, Mega-Pastors, and Bishops in the Body of Christ 'cause they know they're praying and pressing in with their praise and waiting upon God for that one or two missing pieces of the puzzle that would bring the whole thing into focus with greater clarity and help them with the deliverance and restoration of humanity and the discipleship of the nations.
So, they're clinging to the very promises already that ultimately point to the Universal Restoration, but as Acts 17 would say, they're worshipping in ignorance. Change the life of a really powerful man of God that's shaking cities with revivals, jails with revivals, nursing homes and hospitals with outpourings of the Holy Spirit, regions, whole nations, or continents and when they've prayed through their congregations, friends, partners, and those that are really supportive of their ministry then you've got whole movements in the Body that wind up going UR once the Biblical understanding and prayer breakthroughs are there with their fasting and thanksgiving for His outpoured Spirit.