Sadly, using foot pads and paddles can tie us down but, using that combination can offer a definite advantage since multiple contacts and larger contact area can make a difference. Mobility is also important and the brass bands can be helpful there but are to much additional expense for most of us.
We have been caught by this dilemma and are looking for a good solution. We are considering offering smaller flexible copper pads that might be an advantage to some. The problem with that is the additional expense and that they would not be as rugged or durable.
TENS pads are convenient but have a higher contact resistance, perhaps they will improve in the future.