Hi Marine,

The high-pass part of the filter gains little, as it is akin to the polort
regression. BP filtering is mostly a question of the low-pass part.

I expect that as the cost of band passing gets better understood, it
will be used less and less, particularly at fast TRs. As you are seeing,
below 1s it is already almost infeasible, especially when combined
with censoring (which is more directly useful). The way BP is typically
applied, the cost is hidden, so most people probably just do not
realize it.

But as you say, the use is common. Reviewers might even expect it.

- rick