anyone familiar with mercury proxs
The differences if you compare the two are just not factors anymore as in non-measurable (Weight, noise, speed, smell, hole shot, cost, etc) They are both great. But the number of 2 strokes vs four strokes being offered every year gets smaller all the time. We will probably see the day when you can't get a 2 stroke.
I had been an Opti guy for many years and never had a problem. I bought a Merc 150 four stroke last spring and all I can say is WOW, what a motor. Amazing hole shot (with a Tempest Prop which has adjustable ports to improve hole shot with out robbing top end)(scary fast top end = 55+), never have to add oil which when I bought it I didn't think was a big deal, but after a season of not worrying about that is really nice. Plus the changing the oil is 100 times easier than on a car and cost me about $40, much less than the amount of two stoke oil I would have consumed in a season.
So I know someone will shortly come on and bash me as being wrong which is normal for this site and why others refrain from commenting. But with the number of good 4 strokes out there and the differences between a 2 & 4 being basically non-measurable I don't know why anyone would not buy a 4.
Have a nice day.
That being said the 250 Pro XS was the workhorse for many years. I believe the smaller versions of the "XS" are relatively new to the market. In your case it's a "hot" 150 meaning it produces some extra horsepower set up to do so from the factory.