@briancole The problem with this strategy is that by tipping mass amounts of cones you are technically manipulating multiple cones at once and thus violating SG9. I don't know if the refs would call it or not, as it's kind of in the hazy zone of the rules, but it's probably not worth risking it. Defensive strategies have pretty much been shut down this year.
Actually, it's totally legal.
The Mobile Goals are weighted so that they naturally want to be upright. Knocking them over is a complete waste because they can be righted with relative ease and there are only four of them. In contrast, there are a lot more cones than goals, and a cone's weight is much more evenly distributed. In the "upright" position, cones are taller than they are wide, I wouldn't call them unstable, but they are MUCH easier to knock over than a mobile goal, and much harder to right.
A friend of mine has a "Golden Rule" of sorts when working with VEX games, you can't think about intaking, it just has to happen. Drive in a direction, hold a button, and the intake does the rest of the work. This is a little vague and idealistic, so to put it a bit more succinctly, if your intake can't manipulate an object from any angle and any orientation the same way, you are losing a lot of efficiency. At a high level of gameplay, a driver needs to be focused on their next target and overall game strategy, not the specifics of picking up the scoring objects. If you have to put any effort into getting an object into a specific orientation before you can manipulate it, you are on the wrong design.
The way I see it, if you can manipulate tipped cones well and spend the first 20 seconds destroying the initial field setup, you are going to dominate robots that primarily intake upright. Get good at playing a specific strategy, and then force everyone else to play your game or lose.