I have a 48 inch with 121/2 Kaw. I was thinking about putting a 14 on it. The mower cuts good, but with heavy growth and/or leaves, the cut is not the greatest. Do you guys thinks the 14 would improve performance? Is it worth the time and money? BTW the mower is only 6 months old. The 121/2 coming off could be used to replace an older engine on a 36 walk-behind. Thanks for the input!