[bigvictu]

The plates are tiny on the jumping jacks and it sure isn't as comfortable as standing behind a vibratory plate tamper that pushes itself in a direction.

[cgland]

Originally posted by neversatisfiedj
That is my debate. ICPI states now that you have to have at least 5000# for the base. 3ooo# for setting. I use a wacker 1550 like most others, that has around 3500#.

Actually ICPI is now "recommending" 5K for setting and 7K for base. They upped the proctor density to 98% as well.

Chris

[Greensmith]

I just took a ICPI Based course and they were talking up the 98% proctor density as well. The seminar leaders were saying anything less then 3K won't do it for longevity but 5K is what you should aim for. I heard a bit of grumbling at that one.