I love my Strikemaster 4 stroke. It is so light (23 lbs I think) starts nice everytime and just purrs. I've been out 4 times this year and still have 3/4 tank of fuel - haven't had to fill it yet. The only thing you will notice is when you get close to the end of the hole if you are putting pressure it will suck you to the ground. I am used to it now and just don't put much pressure on it, cuts fast without. I've rigged mine up with the quick release eskimo attachment and just use a 3/8" pin instead of a bolt. Once you put that on it makes the auger a little longer. I had the strikemaster auger bag and it was too short after I put the quick release on, so I bought the Eskimo Auger bag and it works great.
I also got the stikemaster Auger head back, so when I do undo the head I have a bag for it.
You can get some of the accessories from Bay Distributors:
http://www.bwmarineproducts.com/baydist.htm
Great customer service.
Good luck with your decision.