Hey all! I've been researching propane quite a bit lately. I'm considering using something like a 74" front mount mower with propane for my commercial ZTR. In past thread(s) I've been weighing options for services my larger properties (5-18 acres) People recommended getting a large ZTR instead of a wide area mower. The two options I've come down too are... getting a used gas ZTR pros - cheaper initial cost cons - no warranty less efficient/cost effective as propane less engine life getting a new propane mower pros - Well its propane! Awesome stuff! longer engine life less maintenance more efficient and environmentally friendly than gas cheaper fuel cost warranty cons expensive price! for a little extra info - the commercial side of my business is looking to gross between $20,000 - $30,000 if all goes well. So after expenses I'm looking to have between $6,000 and $8,000 it invest (pay off) on equipement for this season. I'm looking on any and all opinions about Zipper mowers (both front and mid mount) info on Propane mowers info on Metro Lawn (propane provider/delivery service. Looking forward to discussing this issue with you fellow lawn care professionals!