zhkent,
Great info...just great. I don't know about Mercury but your posts are really helpful.
I have renovated an old 1/4 acre pond into a 2 acre bass pond with my 450....and it took awhile and lots of patience and some repairs.
You used a term flotation and of course I know what that means in the general sense but as applied to dozers are you talking about the getting stuck factor or something else? Thanks again for your responses...you've got me to thinking about a larger machine because I've still got several ponds yet to build in my lifetime (hopefully). Thanks again for your responses.