Had one for little over a week and have decided that it is a new form of torture. However it such a cunning torture that I find myself returning each day for a dose. These should be installed in prisons so that the wardens can put their feet up.
Could also go on for hours, a fly press does work. A hydraulic press is better IF it is set up right but could do way more damage. We have used fly presses to swage very high tolerance parts together for tank transmissions. Not a punching and quite a long push.
You could always try a local engineering firm and see if they have a fly press, they have a very handy hole through the middle, long stroke and forks fit pretty well.
Ok time to 'fes up. I did work in Halfords. We carried a good range of bikes then too but rarely sold many as the people buying decent bikes were going to the LBS. Just because you have the product on display it doesn't always mean you know what you are selling. It is good marketing to some...