I think there must be a communication or language barrier here..
if you do not believe TinyCore support SquashFS4 mounting look in:
Whatever gave the idea I did not believe??
ibug has made reference in many posts to sfs files which are commonly understood as Puppy SFS files. Until ibug explains otherwise how is anyone expected to read his mind?
ibug a lot of good folks here are more than willing to assist but nobody can read your mind.
Please see the view from the other side, It's easy to get frustrated trying to help someone who will not help you to help them.