Along the main straight, try and hug the pitwall before gradually moving to the left for a line into Paddock as you go under the start gantry. This is to minimize the incline on this straight (which is actually not straight at all).
Paddock is legendary. Described by one driver as 'like falling off the north face of the Eiger', I can't really concur as I've never had the desire to do this comparative test. Do a couple of sighting laps, come into the pits and try and imagine the corner without the sheer drop in the middle of it. This is the best way of visualizing the correct line. The apex is way over the crest of the hill, out of sight until after you have turned in. It is so tempting to apex early on the bit of kerb that you can see before turn in, but this will result in you having to back off mid corner. With the sheer drop, I can't think of any other place that will give you such a sharp lesson in snap lift off oversteer. So, as you approach the corner, stay high, aiming at a little exit road for emergency vehicles on the left. Do the dab on the brakes or the change down, or whatever your car demands, here, not later. Try and be on the power after you turn in and have the car settled for the apex, which becomes clearly visible due to the rubber laid down on the kerb. Aim to exit just before the gravel trap ends on exit.
Druids is faster than most hairpins and presents a 2nd or 3rd gear quandary in some cars with road ratios. What is for definite is the fact that the apex is two thirds of the way around the corner. Get this right and you will be able to power out of the corner. Apex too early and you will find yet another corner that punishes those that lift with an exit into the wall. If you are in something as unforgiving as an Elise or an early 911, this can be very tricky if you apex too early.
Graham Hill bend used to be a long left handed, flat out, curve, but has now become a ninety degree left hander following circuit modifications in the late nineties. This has given a new passing place. Ignore the early apex on the preceding kink, and you will find a pretty straightforward corner with plenty of run off area, but you don't want a messy exit as you will be passed into the next bend. Watch out for locking the brakes here. It is steeply downhill and your weight transfer is very heavily biased to the front.
Surtees is where the Indy circuit branches off the GP circuit. A great little corner that hides its challenges from most spectating points. May I suggest that you take a walk down to the back of the pit garages and stand in a position where you can see a straight line through the left and right apexes. This will prove a great help later in identifying your turn-in point when you take to the track. In smaller engined cars, or cars with downforce, this may be flat. Try and avoid the left handed kerb, as it may unsettle the car. You need to 'thread the eye of the needle' between the two apexes. When you do you sighting, note which advertising hoarding faces you if you draw a straight line through the apexes. This will become your target as you aim through the corner.
However, The second apex is also your braking point for Clearways. As you aim for your marker point, you will find yourself at the kerb on the left before the GP circuit merges. From here, look right to find the kerb on the right. This is quite an early apex for the right hander and you should not fight the car. Let it drift over to the exit on the left. If you are getting off the power here to avoid running out of road, you may want to brake earlier as you go through Surtees. It is definitely worth compromising a couple of metres braking distance to get more exit speed for the uphill start finish straight. Remember to come in to hug the pitwall again.