I've been studying alot of old school boxers from the 50s-70s like suga ray robinson, ali, willie pastrano, Thomas hearns, leonard etc

A few things I've noticed about the boxers from that era:

• they have a more narrow stance in comparison to the wider stable base stance in modern day boxers?

• they also throw their jabs out like a whip with a strong snap from the waist whereas today I see alot of fighters opt for a stiff jab from the high guard that has more push behind it.

• boxers from those times would also be circling their opponents changing directions in comparisons to todays boxing

Follow up question: is circling into the opponent power hand bad if you're you slip and counter? This is also another technique I came across from old school boxers

These are just some of things I've noticed about their style. Would their technique/style work in todays boxing?