I frankly don't get wanting track ends for the road. Bigger pain changing the wheel and fenders are a real pain. Horizontal dropouts make pulling the wheel fast with clean hands easy. Yes, if you are doing big gear changes on the road, the long track drops make it possible, but if you can spend the bucks, a custom road dropout is far better. (My ti custom has a road drop that allows any cog from 12 to 24 teeth without messing with chain length. It also opens down at the front so getting the wheel in, even with hill-climbing cogs, big tires and fenders isn't hard. I had it angled 11 degrees from horizontal, less than a true road dropout but it allows the brake pad to stay on the deep Velocity Aero rim while minimizing the height change of the back of the bike. Works really well! Rode a 9800' day up to and around Crater Lake unscrewing cogs twice and doing all the other changes with quick wheel flips. 42 X 12. 17 and 23.)
Ben