As I plan to properly overhaul a Vacumatic, I was wondering which style of tool do you prefer for removing the plunger/pump and why?

One type is the brass or aluminum block type such as this from pentooling.com


Another is a hand squeeze tool like this one from pen dragons (https://www.vintagepensacsandparts.com)



There is also the original Parker tool but I doubt I can find one or justify the cost if I do.

And finally there is this one from penpractice.com:



Maybe there are others.

Which type do you prefer and why?

Thanks in advance!