Well I would first say I am not trying to be too over the top about this, but there are many possibilities and trying to eliminate as many as possible is not a bad thing. It is a house of cards to build a theory on HB phone having to be tossed first. Cell phone gps is not very accurate in rural areas without many towers. Also, if you disconnect the battery, the gps will not be activated.I don't see how you could have a "plan" per say, I mean you could have a general idea, like go north on Swan Johnson, but I feel like with most plans, as soon as the perp takes the first step towards the woods with Holly, or really from the first confrontation with her, the plan is out the window, and you just do whatever it takes to acomplish your goal..but the guideline you follow is to always be careful, and to not attract attention..etc.
I always liked the idea that the perp travels from the Bobo residence on Swan Johnson directly to highway 69(I think it is) to the area of concrete plant on eaton rd. and and throws away the phone first because he/she knows that it can be traced. The reason I think this is that its a direct route, and it gets you onto a well traveled road where you blend in better. I mean if your travelling around the back roads of bible hill and you pass a sheriff, the word is out, your more likely to get stopped, but if your traveling on highway 69 your basically just in traffic, and also it gives you a better chance if you have to run. Then the perp heads north, away from the crime scene, my guess is he had the interstate in mind and putting some real distance betweeen them fast, but at the last minute, he realizes its possble that there is a roadblock, or checkpoint maybe set up at the interstate. He can't take a chance, so he pulls off 69, and quickly gets to the gooch rd location where he feels comfortable enought to put things in order, at least enough to pass a quick roadside inspection or traffic stop...then he books to I 40, and is gone, before LE at the bobo's is really even got a good grasp of what happened.
As far as Carla's comment, I have always though in most cases throwing stuff out the window is to unpredictable, its more likely to end up in the middle of the road..I mean the Manson Family throws the gun and the clothes from the Sharon Tate Murder out the window, but there its out the window and down the side of a cliff..I think the Perp in this case tossed the phone and stopped at the gooch road location.
If you are familiar with any given area, you would know the best routes to take if you need to be quick or if you need to not be seen. You generally know where people live and you also know which roads are less traveled. In that kind of rural area, there are many lesser traveled roads. Also, I do not want to speculate to much about the direction they initially went, because there are so many possible routes not including the woods (which is a whole other topic).
Try to do the math of what your saying, using the timeline from the last MSM article. Let's say camo and and HB walk into the woods at aprox. 7:55AM. If they immediately got into a vehicle and headed toward the Easter find, that would put them there about 8:05-8:10. LE is at the Bobo house at about 8:05. That means from 8:05 on, LE and most likely other worried locals head towards the Bobo home from what we can assume is multiple directions. The perp then drives on a commonly traveled road to toss a phone out the window, with a victim in tow, and continues to drive several miles north and turn off west to make his way to gooch road. It takes at least a couple minutes to get to gooch rd. from this direction, passing several homes in the process and by this time it is probably 8:15-8:20. He then stops to toss the lunchbag and make sure he is THEN ready to leave the area? 20-25 minutes has passed since they left the Bobo property and they are still driving around the local community?
So he has no real escape plan, eventually throws a phone out the window, is paranoid about taking the highway initially, takes a circuitous route away from the highway to place the lunchbag (because he is worried about being pulled over with the lunchbag even though HB is still in his vehicle) and make sure HB is secured, then he feels okay to then travel on the highway? I would not say this type of scenario is impossible, but that would be equal to not having a plan at all. Doesn't it just seem simpler to toss all her items at once and take off, or just take off and worry about the items later?
My point is that it is much easier/simpler to speculate about the items as being placed for purpose, other than mixing and matching which items are tossed where and when.