Looking for a used triple slide 36' 5th wheel. What brands/models are good quality and which ones to stay away from? Features/equipment to look for/stay away from? Anyone recommend a particular buyer's guide that is model specific and practical? We've looked at Thor Signature - Tahoe, Cedarcreek, Montana, Alfa, Damon, Carriage, Forrest River Cardinal - Spinnaker, Sportsmen, Jayco, Holiday Rambler. Any of these turn any cranks - one way or the other? Thanks!