Well, my Meidai is over 25 years old and was my primary pump for about 10 years until I found a Silca on sale at a "can't pass this up" price. However, modern all-threaded presta valve stems are hard on the Silca head's washers so about 3 years ago I bought the Park to get what I hoped was a more durable head. Those "dual purpose" pump heads don't work nearly as well as I thought. I saw a glowing review of the Hirame head which turned out to be absolutely true and it has ended all problems.