I seen a new Gravely propane in action it was tuff out cut the 460 but seem dangerous to me with 2 tanks beside you and a possible leak then static or electrical spark boom.
2014 JD 920M 7-Iron Pro 48" 23.5 hp Kawi
05' Gravely 148z 1700+ hours 21 hp Kawi
5x10 (upgrading winter)
All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident.
Arthur Schopenhauer, (1788 – 1860)