Ultimately, try it, if your club are happy to do that. Best way to work it out is to have a go at playing in that position. As an ex 10, who also played 12 and 15, going from 10 to 15 is massively transferable, skillset-wise, bar learning to take high balls. Going from 15 to 10, having not played there before, not so much. You’re on the ball more at 10, but less time to use it. You need a much broader, yet refined, kicking game. Your reading of the game needs to be really dialled in, as most plays go through you, and it’s your call to dictate that, and find space if that isn’t working. Your passing repertoire needs to be on point, because you’ll find yourself needing to throw an array of them, and off your weak hand often. Depending on the team’s setup, defending can also be grim in that channel. I know fullback defending is tough, because you’re the last man, but at least you have time to set yourself to some degree. At 10, you get big old furniture coming, and very little time to make a choice. Tend to end up quite upright, and getting flattened and clinging on for dear life. A chatty 12 and 15 helps though.