As systems are engineered to support smaller wire (24v & LED's), is it okay to use solid wire at some point? (e.g., as in irrigation wire for 24v controllers.) It's my understanding that the stranded became standard for LV applications because it is easier to manage and lay flat in a trench. But with smaller wire, this becomes less an issue. I also noticed the invisible fence pro's use solid wire, which is much more durable than the small stranded wire which comes with the consumer kits. I think the solid wire would be more durable, and connections more reliable, with less worry of cut strands (especially with smaller wire).