I used to use the Preston spring ones, - they are very good.
The one downside with them, I found this out to my cost in a match, if it is damp or are used extensively for long periods, they can jam up, it has happened more than once with me.
Mist of our lads use Fox, than have solid brass ends and take an eternity to wear.
A lot has always been said about the slit at the business end of the punch, I never use it, more of a hindrance
I still have an original Embassy pen like set of punches where the various tops go inside the main barrel, I have one missing. The original ones, very rare to find nowadays, never had a slit in them at all
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