I've run a 27hp Kaw. liquid cooled Toro Z-master for 4 years now (about 1800 hrs it only get's used 3 days a week) and never see anyone in my area using them or nobody ever mentions having one on here. Just wanted to here people's thoughts about the pro's and con's of liquid cooled vs. air cooled and if anyone has used both types of machines do you think the extra money is worth it? Just wanted some feedback. Thanks