I agree, you probably won't even use it but the statement that a truncate does not log is untrue and I corrected this.

Personally I don't care two hoots whether you...

I believe Stephen intends to retain the seed value hence my previous recommendation

As I said try it for yourself

If you run In a transaction without committing, yes

Try it for yourself

Truncate logs the page deallocations

turn on identity insert for the table when loading

run a tlog backup 😉

run a cluster validation report and check the output

please post the output of this powershell script