That weight for the .46 is without muffler, whereas those 4 stroke weights are with muffler. The .46 with muffler will be up around 17 oz., so it is really comparable to the smaller 4 strokes on your list.

I have recently started using 4 strokes and I enjoy them so much more than a screaming 2 stroke. I actually feel like I fly better when I'm not listening to those high revs, and the 4 stroke sound really enhances the whole experience. You probably save some on fuel too, but that is not the issue - it is the experience we go out to the field for, and the extra for a 4 stroke, given all the other expenses of the hobby, is well worth it to me.

Sawdust - I think we are talking about 2 different 70s - maybe you have the FL, which is about 18 oz w/muffler. I have the original Surpass, which is a little over 20.

Jim