We have never found the bearing press to be very hard. So, make sure you have your hand under the input shaft as you are pressing the bearing off. If you don't catch the input shaft, the input shaft will drop on your toe and you will scream--or WORSE, the input shaft will land on the concrete floor and you will not be able to sell it on eBay! (Toes heal...usually.)
In this photo, Sandwich has already caught the input shaft and is now taking the entire assembly out of the press.