I have two quotes in: Both are for nine ton systems (though one said 4 tons upstairs, 5 tons downstairs and the other vice-versa). There are two major differences: (1) WF vs CM and (2) horizontal trench (4 trenches x100' w/ 4 pipes in each) vs vertical well (5 wells x 275'). The WF with horizontal trench quote is 17% more expensive. Any thoughts on system comparisons and/or drilling methods? Thanks!