That is a new way of doing it for sure,if the roots have grown out the bottom id suggest getting some 2 or 3'' net pots and doing it right. As that is going to be a pain changing nutes and ph'ing . when the time comes to do bucket maintenance.looks like your having fun,and that is all that counts.Remember read everything you can and use the knowledge gained to make the next time better-thats what helped me! good luck and happy growing