When you refer to " I also particularly like stopping in 4th and then one clicking straight into 1st for the pull away.". Are you on a US spec Honda trail or a Asian CT 125. I understand that the shift patterns are opposite?I very often don't downshift when slowing down to a stop, but stay in 4th and select the gear I want when I know what I need at the junction. That can mean pulling away in 2nd if still just moving or if the road is downhil, or sometimes selecting 3rd if the road suddenly opens up. I also particularly like stopping in 4th and then one clicking straight into 1st for the pull away. I'm glad you can't do that at 50mph.
My only recurring problem is revving out in 2nd or 3rd and then changing gear the wrong way (to a lower gear) because most bikes I ride are "toe up" for the next higher gear. The only way out of that is to slow the bike down enough to release the gear lever and starting again, because you can't quickly change 2 gears higher without "letting the clutch out" and screaming the engine. Anyone else do that?