Lawnboys.....Man I grew up in this industry using them...first 19's and then 21's get use to the stagger design and they were easy to push. M- series....man i thought it was sweet to only have to poor pure gas. All you had to do was fill up the 2 cycle oil every blue moon. THEN OYSTER MARINE SOLD TO TORO!.....Toro decided to stop the improvements because they just bought the company and never had any intention of keeping the brand a viable compitor to their commercial grade mowers using the 2 cycle suziki engines.(they sucked!)The coup de grass was when they decided to sell in the big box stores. Weststar (CA OR WA UT NV WY AZ CO...basicly the west of Rockies) told toro to come and get their rail cars of parts and mowers and take a hike... The irony is even though they became extinct here in CA, the small blocks are still manufactured here in FRemont. There are still the Japaneses, Basque and Mexicans still using 20 year old bodies and replacing engines when ever. And yes....toro didn't want to put the money into getting this machine to meet c.a.r.b. teir III level. C.A.R.B. containers.....the best one out their and worth their wait in gold are the NoSpill brand gas cans. They were bought by Honda and are a Honda item also. 5 gal can to empty no more than 2.5 minutes. Other than that everything sucks! Ethanol....well until we figure out a way so we don't breathe the pollution that is out their, then there has to be some kind of solution their. Until you see the smog that looks as bad a tule fog (http://en.wikipedia.org/wiki/Tule_fog), you wouldn't understand the need to do something about it. Have 2 kids with asthma and you'll understand even more. Fouling spark plugs....seen that and haven't had a problem ever since I started using at least 89 octane gas. As far as destroying engines....well that's left to be seen....Here in CA, we had more of an issue with MTBE in our gas. Shhhhh.....the chemical cleaned our air.....but it poison our water supply.....this is one time that you should be happy CA is more progressive about air pollution.....they(law makers and Air Resource Board) didn't believe the states scientist that there was a strong provability it would poison our water supply.