Originally Posted by sea bass
the Scorpion is far better than any other boat including the revenger...
That's my opinion, and as far as other RIBs are concerned, there aren't many others that I would consider. There are good reasons for this - a superb hull design, quality of workmanship that is second to none, intelligent use of materials (ie GRP deck and wood only used in the transom) and attention to detail throughout the build. Add to this the constant development by Graham and you have a winning formula. However, this comes at a price. Secondhand Scorpions come to the market infrequently and at a premium price. Add to that the fact that the hull was designed as a 7.5m+ (I've only ever been in one well set-up 6.5m Scorpion - Rogue Wave's).
So if you are after a 6.5 / 7.0 with 150hp then I would definitely look at other makes such as Osprey, Tornado or Solent. Osprey have some very happy customers, as do Tornado. Knowing your location, I wouldn't consider Ribeye or Prosport as don't think that they would be much better than your Narwhal. Revengers are good, but they are a fast hull and I'm told that they can be a hard ride.
Another good make to consider might be Gemini as I think their 7m is very good.
Arnaud, peut-etre votre Anglais est plus bien que ma Francais, mais si ca est difficile a comprendre, je essayes en Francais?