Back again, new games and new questions!

Hey all I finally got back to playing this game and yea, more questions. So we were both trying out powers/magic this game around. I brought a draconic with ice bolt (innate powers) and ophidians with etherbolt/counterspell. He brought lightning, darkbolt, consuming chaos, and I don't remember what else on his human wizards. The way we did it, it looks like human magic casters are REALLY bad. So lets see if we did it the right way. My Draconic started the game flying, has a willpower of 4, strength of 5, toughness of 6. My icebolt reaches 30 inches (5x6=30). So do I shoot the straight 30 inches or was I supposed to reduce it by 9" to 21" because I was flying? Anyway, I channel 4 strength into my icebolt putting its strength up to 4 (base 3 +1 enhancement from channeling) then I roll a d6 getting a 6 (happened twice). Does that mean I add my willpower of 4, plus the 6 from the roll, and then add 4 (from channeling the strength) or 1 (from the strength of the spell)? Basically is it 4+4+6=14 or 4+1+6=11? Also since I only HIT 14 I don't suffer from the mortal threshold, rules say I have to exceed the roll, correct? Now channeling with my Ophidians its based off command using willpower to channel, well if I channel its a 4+3=7, wouldn't that just make it so my spells can never fail? Even if I roll the 6? Seems really easy to never exceed the mortal threshold with any race but humans while also getting crits if you combine the base stat to cast plus its channel stat. Where as the human wizards risked it with a base of 5 willpower and channeling 2 to get their spells off on an 8. Sure its a 6 on a d6 but compared to the reptilia ones....seems a little off if we are doing it right. Now onto something we have noticed. Yes its only been 4 games but its really hard for us to get more then 1 game in at a time because every time we notice something really off about our armies we have to head home and re-do or modify the armies. It seems that there are some blatant balance issues. Our first game, I had a reptilia troglodyte that he could not hurt (it was a 250 point game). We called it because I would lose on objectives and only have his bugs bounce off my guy. Game 2. He brought a big beefy insekt that I could not hurt at all. Had something ridiculous like toughness 9 after armor and I brought spells that I thought were good, however are not. Game 3 was the only game we played till turn 7 because neither of us had a big broken army destroying unit, he just shot me to death through fog and night thanks to his racials. Game 4, the one we just played. He had a golem and a single unit with war animals (bears) join level 1 squad with War animals (dogs) so he had a giant 23 man unit of death. His wizards did nothing first turn and then died to my flying draconic lobbing icebolts that cannot miss into his wizards killing 2. His golem comes in and is brick walled by my troglodytes, even though they cant even scratch the paint on him. He conceded on turn 3 when we realized that my flying dragon man can kill everything he has at a 1500 point game with only a 160 point unit. His army, even at its base, could not do anything to my draconic. Same as in the past few games when it happens "oops I brought a OP unit!" game. I really enjoy this game when I get to play it and it looks like it could be a whole heck of a lot of fun in some age spanning campaign but man....sometimes we look at the balance and go "huh, that feels like it wasn't playtested." or "Wow I really did something wrong that I don't know how to fix."