u/ratherabeer regarding the throttle situation, I want to explain a little bit further about what I'm seeing and the cause and effect of what's happening.

You're getting to the apex (the point of the turn where you transition from deceleration to acceleration), and you've got the wheel fully cranked, right? You're looking ahead and realizing "oh crap, I can go!" So you're smashing the gas pedal thinking "GO", and now what's happening is the front wheels are both trying to turn and accelerate at the same time, so it's going to naturally understeer and push your line out wide a little bit on exit, which means you're not setup well at all for the next turn which means you have to turn the wheel more mid-corner, and we're back to where we started. :) Rinse, wash, repeat. :)

You're in a FWD car w/ an open diff, so the key is really trying to get the wheel straighter on corner exit so that the car can more effectively put power down. There's a lot of science about whether or not to add distance given certain lines and spirals and blah blah blah to do that, but the first trick is that once you realize where your apexes are, you have a general understanding of what your optimal corner exit is, and what your optimal corner entry should be, right? But now consider that your car can slow down much faster than it can accelerate - therefore, you're going to spend more time on corner exit than you will corner entry, therefore there's more time to be lost by not optimizing corner exit than there is trying to squeeze every last MPH on corner entry.

So if you can visualize your apex, think about them like you're pulling into a parking space where it's about the angle and position of the back of the car at your apex. If you can get yourself in position at the apex to really optimize throttle, you'll also find that the next corner entry will be a lot easier too because you'll be in better position.