I am just a lowly home owner who needs to replace an underpowered "John Deere" split shaft trimmer. I put JD in quotes as I found out it was just a Homelite in disguise. Anyway, its days are done and I want to get a good replacement. I want to be able to edge with the straight edger and have enough power to run it through clay soil and be able to use the cultivator attachment. I was wondering if anyone could give me some input on whether I will have enough power to run those items on the KM 55 or whether I should opt for more power with the KM 110. I also like the idea of the new low emission engine on the KM 110. I am also considering an FS 110 R and just changing out the power heads. This will be a happy median with the cost factor ($60 less than the KM 110), but will require a few extra minutes of time when changing out the head. Anyone who is doing this today, please comment on whether you regret not getting the Kombi System instead. Anyway, thanks in advance and I'd like to purchase this week if I can make up my mind!