James said... The best I've seen was a pic posted by the inimitable Waveslave. His quote "I adapt stuff" His mod, was attached to the base of the pump,looked like a far more a solid connection than a couple of flimsy straps.
I plan to modify my own pump for next season, a la Waveslave. Hope he didn't patent his idea

. If I remember correctly , (it was a few years ago) he copped a negative response from a mouthy juvenile, who will, one day want a pump that doesn't make his back sore .
You can't pay a man a greater compliment , than to copy him

Post that pic again 'slave, you old bugger


. cheers, J
Slave has kept the photo in his gallery, so you can see it there.
I just built a wood frame. It doesn't really matter what way you build it, several ways work out about the same.
I reckon build it height wise so your knees are just slightly bent and arms straight when you finish the downstroke.
The only thing I would say is - its best to build it so its tilted away from you. I found it best to tilt it about 2mm across the 100mm width of the base of the pump. It's just the way the ergonomics work out.