I got the slimline trapper now and have been using it for a while. My first impression were mixed. The knife is slimmer than I thought and the blade looks fragile, as Platerz pointed out. A valid point, but you must decide what you want to do with a knife like this.
I like the green pocket-worn handle. A matter of taste, of course. The long handle gives support even if it is quite slim. Handling it is like handling a ball-point pen. It just does not write, it cuts. And it cuts damn well. The blade was sharp as it came and some stropping turned it in to a razor. I have used it so far to food-related cutting tasks and it does those very well. Onions, paprika, tomatoes etc. are cut easily. The slim handle is surprizingly comfortable and gives good controll.
I will try some light whittling but no doupt there are better knives for this. Anyway I bought this for light use, a culinary gentlemans knife if you like

No doupt this would cut a stake in a breeze.
The spring is light but for a knife like this a nailbreaker would not be a good choise. The spring also stays lightly raised when blade is opened, so it is not totally flush. I first thought that there is a slight sideways play, but now I am not sure. Maybe just a little, but it does not affect use in any way.
So I am quite pleased with this knfe. It slips easily into my jacket pocket and you dont notice it, until you need it.