"Thank you, Healer McMurray-sensei," Sascha replied, laying his finger tips, feather light, on the back of the Healer's hand, Feeling as the other man made the motion, then cast the spell. His movements were very clear, and Sascha had no problem reading them. Sascha was very appreciative of that fact. Sometimes even professors had muddled or unsure wand movements, and that made them hard to copy.
"Yes, thank you, that makes perfect sense," Sascha answered. "I have no questions," his tone remained very formal and respectful. Nothing about Healer McMurray-sensei invited informality. No, professionalism and maturity were the best options. He paused a moment, then said. "No, I'm sorry, I do have one. Were I to adjust the spell, say do have different vibrations instead of different colors of light, would you still consider that doing the spell correctly in relation to grading my work?" Because if no adaptations were allowed, then he'd have to figure out how to make the spell work for him as it stood, or make the spell work as it stood plus do something else that would cue him in as to what the light was telling him, cheat in a way, he supposed.
He didn't care if the professor told him it wasn't possible to adjust the spell. Sascha couldn't say how many times someone said it was impossible to do something differently only because they'd never tried. But what mattered was figuring out how to pass the class. Oh sure, learning about healing mattered too, that was the real reason why he was here. But all the knowledge in the world would only get him so far without actually passing his classes.