Richard, I spoke about scorpions being difficult to steer in a following sea. I owned one for four years. I fished in large swells, up to 3 meters on the east coast. To give advice to "keep ahead of the following swell, keep steering and all is sweet" is fine if you're negotiating a bar. On the open sea, no one is going to drive at the same speed as a swell to keep ahead of the following swell, as the swell is very fast in open water and slows as it approaches shallower water. As my boat came down the face of a wave the bow would steer in one direction or the other. I ran trim tabs and had my engine trimmed correctly, yet I could not prevent it. I tried many different scenarios but couldnt prevent it. Its just the hull shape

 

Mowerman, you speak of the know it all nothings. The original poster asked for peoples experience with scorpions. I gave him mine. It is obviously different from yours, and thats great, it gives the OP different perspectives. To say some people giving their opinion are know it all nothings is a bit rich.