Quote from DragonArcherZEasiest way is through actual practice.
The thing is, at your level, sure, it works, but the higher you go, the more efficient you have to be (and also the less viable strategies that exist). For example, in high level games, the tower income difference can immediately be a game ender, especially in mirror matchups (take a look at CvC for a prime example.)
For example, what you're telling me is you're wasting 300 gold on CA, which could be two miners. HUGE difference, and the CA doesn't translate into power that can capture tower or put on pressure against me.
Come teamzenith.com/irc -> look for [TZ]DAZ. I would offer a code but I'm not here to be spammed. I'll play Chaos and quite frankly, I don't care how you cut it but with such a strategy I'll beat you ten times out of ten. Assuming you don't lose to bombstreams. That's confidence for you.
But while I'm here, I'll nitpick a little:
"you can FINALLY get tower spawn to see WTF is going on at your enemy's base."
You should never have no clue what your opponent is doing. At least run in a unit (e.g. spear) to see what he has, or even better, stance your army semi-aggressively so if he garrisons/backs off/has less army than you, you can push.
"4 Flying Crossbowmen"
Why. Just go pure archers. I'd rather giants in that albow space. Albows aren't really viable due to setup time (and you need merics and so forth to keep them alive) but if you insist, go pure albow not half archer half albow.
"11 miners"
Too little miners. Not everyone goes as heavy as me, but I personally aim for 17~. You can't afford a huge army fast enough with such a weak economy.
17 miners that must be a great eco can I ask what you buy with it or do you put the extra gold away for late game? im guessing 12 on gold 5 on mana?