New Prius 2015 Owner Observations (and questions)

So, I'm really digging my 2015 Prius I just bought with <9000 miles. I've already read up on the hypermileing, and discovered that I am doing a lot better in the burbs on mileage by staying in normal, rather than econ mode. I hit 60 for a few hours yesterday, but once I got into the city, that dropped to 57. I'm unsure whether to try econ mode or stay in normal for congested city driving. I'm pretty sure I could get the same mileage with power mode on for more pick-up now that I know how to coast properly. Power mode is fun! That electric torque is great.

Some things I have issues with though, maybe someone can comment:
1) I can never get all the arrows to disappear while gliding. The best I can do is a smidgen of electric power to the engine. Neutral is too risky in my opinion, you might need the power. I guess this is close enough?
2) When I break to a stop, I'm having a really hard time avoiding the roll forward motion of the chassis in this car. Everyone knows to back off the break a tad to avoid that in most cars, but in this one I just can't do it unless I'm already only moving at 3 mph or so...
3) I updated the damn Entune and now my Bluetooth is breaking up...I have a Nexus 6p and everything was working fine before the update. I'm not sure how related they are.
4) Is there any way to get lifetime mileage for the car other than using a trip A or B? Haven't found one in the manual yet.

Also if anyone's interested, I have a really nice AutomateIt script for you Android users. It uses the magnetic field from my phone car mount to start bluetooth, deactivate Wifi, start my hotspot, etc. Then it uses a new "personal activity" variable which detects a walking motion to kill everything. It also starts a car mode app I've been trying, but you can delete that or change it to whatever car mode app you like.