Hey Guys I have a Hotspot a friend is finishing up for me and I purchased it in primer and it came with a set of what I believe is a graupner set of retracts. On has one air line guessing to retract the gear and release pressure and it free falls. Anyone have any experience with this set of retracts and how its plumbed? It comes with three air selonoids. Also wondering if these will have any problem running on 6.6 Lifepo batteries. Here is a pic of what the gear looks like. Any info on them would be great.