I have the EZ Step for my P-18. On the whole, it works very well and was worth the price. Note: since the mast goes up sideways, you are going to have some issues when you get it upright. The captive pin at the base will tend to bend or will be tough to remove under pressure.
To solve this, I got a solution from someone. I attached a piece of line up near the hounds on the side of the mast that would normally be facing up when preparing to raise the mast. The line gets attached to whatever you are using as the gin pole, essentially allowing the mast to come up on its side as normal without twisting. Once upright, it will be easier to remove the pin, plus you also have the forestay available for attachment to the bridles.
Sheldon
P-18