I use DRT--the gear is simple (66' rope w/ a hitch tied in it) and quiet (no clinkity clankity parts) and there's not a lot that can go wrong with the gear. Getting your gear out of the tree is also uncomplicated. I guess the climbing movement may take 5 minutes to figure out. If you're athletic enough to deliver a dozen hip thrusts, you can probably do DRT. I use Yale Blue Moon 11.7mm which works great but it's not camo. I'd recommend 75' if you DRT.
For throw line I use a little bag I made of cordura filled with bullets. 12oz. My throw line is a 100ft of 2mm UHMWPE cord from amazon (emma kites). It's red, 1000lb, zero stretch, no memory, and very low friction. I keep the cord flaked out (i.e. shoveled with no particular care) into a plasticky grocery tote which folds up nicely, and it shoots untangled right out of the bag usually without any fuss.
The throw ball weight is partly personal preference, but at the end of the day needs to pull whatever cord you use down through whatever number branches you've happened to it passed over. For a little bit I used a 12oz torpedo shaped fishing weight after I tangled a bag at 30'. Downside to that is that it'll bounce back at you if you hit the tree trunk square. Might not hold up over the long haul either--the brass ends get bent when you botch a toss and hit the trunk.