I have a 20 yr old Makita FS 231 that still runs fine.Great trimmer. BUT I figure I'll take it over to my cabin and buy a new one for work. I maintain my 10 acre place and several rentals. I want to buy right the first time out. I don't want a trimmer that is too heavy, but I do want one that works and runs flawlessly. 4 stroke or 2 stroke? Stihl was my first inclination but I'd love to hear from anyone that is completely satisfied with what they are using. Need some suggestions....Thanks for the help!