Ok... i found playing yesterday that with compost ranked up i could kite every player without taking a single auto-attack (unless rook boulder'd me or something along those lines) and keep attacking constantly, only regulus/another compost QoT could reliably hit me because of my speed+range.
I just found it a way to micro and avoid damage. There isnt much room for manoueverability within the lanes but with tower strength on high you can retreat back to your towers if they push and follow them when they retreat punishing them for pushing you.
On the other hand most of QoT's abilities are rubbish vs DGs but creep slaying monsters.... Demigod vs Demigod fights arn't static if its melee vs ranged, melee vs melee and ranged vs ranged are pretty static unless someone has a clear advantage in which case the other guy is usually running away + stunning etc.
My revised idea (i've slept on it =P ) is that regulus/torchy could fire while moving and the projectiles would curve like they already do to hit the target unless you are running away from them/their chasing. So in the same way they can fire while chasing now they could if you issues move orders but if you're moving away from them and they are chasing you it wouldnt fire.
p.s. Items are too expensive, if you never run away from your lane and creep it sucessfully over 10+ minutes you should be able to afford a single high tier item, most of the time you dont even come close...