No worries, glad that you're enjoying them!Love this series of posts; thanks for the awesome breakdowns!
I like the usable items idea, and it could definitely be used for laughs or pathos, depending on how you depict the Sorcerer in relation to its draconic overlord. The Quickened spell is definitely way more interesting than Subtle spell, but would probably change its CR calculation; others would know more than me on that front. Either way, dual firebolt would be impressive and let the players work out what 'kind of caster' they were facing, something that I've noticed they like doing. The moment that an enemy uses Evasion or Action Surge, players nod knowingly.I actually really like the scale sorcerer with two small changes. When I ran him as a mini boss for a small level group I gave him quickened spell instead of subtle spell and treated the wings as a consumable item (made by the kobolds inventor) that gives the wearer a flight speed of 30ft for 1 round as a bonus action, like the cultists from RoT had. After one use it falls apart.
I had two other un worn wing sets stashed in the sorcerers room and the party halfling ranger took them for herself!