lol alright then
tbh, idk if u can upgrade a transplant, from one tomoe to the next, but overall, id say you could, cuz even though its a transplant it's still the person's eye and connected to their chakra system, so yeah...
Okay then, for tomoe two, training session one, we will be doing the following.
First training session: You will begin with his/her Sharingan activated. I will be focused into teaching the Sharingan's tracking abilities, by hiding myself in diferent terrains such as at the bottom of a Lake, between trees deep into the forest, underground, in a Rocky Environment and desert. You will have to find his/her sensei's location using only his Sharingan, by seeking out chakra signals, heat source, and the slightest moves.
So overall, we'll be playing a game of hide and seek, cat and mouse, etc., in which you get to somewhat cheat in finding me lol. So, let's begin! *poof* Try to find meh...