Yes you could start back up with a cub especially if you have flown before. A lot of people at my club skip buying trainers becasue te majority of them outgrow them and become bored with thim in literally a few weeks. There is at least 3 people who are just about to go solo who all lernt on low wings for the past month or two. I know a cub isnt a trainer but it also isnt as difficult as some of the low wings that i see others learning on. So my advice is yes you can learn on a cub and you can also teach someone on one, might just take a little bit longer.

Goodluck

Jarrah