Hello vid wes. Tongue blocking is able to do everything pucker can, and more... using the tongue block exclusive techniques (slaps, pulls, flutters, octaves, etc). The only reason we would possibly use pucker would be for a very fast articulate passage, one that use double or triple tonguing. That can be a cool effect, but you can switch embouchure for that... you'll want to have tongue blocking be your primary embouchure, simply to have more options available to you.
Hello vid wes. Tongue blocking is able to do everything pucker can, and more... using the tongue block exclusive techniques (slaps, pulls, flutters, octaves, etc). The only reason we would possibly use pucker would be for a very fast articulate passage, one that use double or triple tonguing. That can be a cool effect, but you can switch embouchure for that... you'll want to have tongue blocking be your primary embouchure, simply to have more options available to you.