I am looking to buy a new pool vacuum. My pool is a 35,000 vinyl "free form" or "lazy L" with an extra return line to run a vacuum. My old vacuum is an Aquabot with great suction but it never gets around the whole pool and I need to watch it constantly as it gets stuck on the bottom drain and the ladder. Can anyone help me decide on between a Polaris 360 and a 380? The 360 appeals to me because it runs off the return line only and wont increase my power usage, but is it strong enough? My pool gets a lot of tree debris and I want to avoid dropping extra dough if I'm going to have to vacuum all the time anyway. As for the 380, it requires a booster pump (more $). I'm willing to pay a little extra for piece of mind but I don't really understand the setup. Could someone please explain how the boost pump works in very plain language (I'm mechanically deficient)? I have 3 return outlets (2 are currently active on the same side) but it looks like only two lines flow out of the pipe extending from my SWG. Does this sound right? Where would the booster pump go? would I need to have it installed. Thank you very much for any advice.