There was a discussion long time back about resizable write areas. With a pen on an iPad Pro this is a huge area and despite the recognition when you write smaller characters now it would still be helpful to resize the square with the auxiliary lines to actual writing size. Especially if sth does not get recognized the suggestion happens in the large size and sometimes you have to write there, to get the stroke recognized tearing apart the character.
I think only an iPad Mini would be suitable right now to use with a pen…
Thx for the consideration,