Originally Posted by YourCptSpeaking

If it were my student, I would recommend using the sectional, then just pulling out the TAC in-flight for reference. That way when you're planning, you're not dealing with different scales.

Best bet is to ask YOUR instructor though...have fun!

Your CptSpeaking

Originally Posted by SebastianDesoto

I think you got the basic idea. You should definetely plan your route on both charts, using your sectional for distances and headings. Refer to your TAC for any heading changes. Also, it might not be a bad idea to have a "diversion" plan incase you do not get a bravo clearance. While flying, defintely have your TAC chart out. Throughly review it and any directions associated with it. I have never flown Seattle so I can not give you any pitfalls, warnings or heads up on its particulars.

As a side question to anyone else that might be abkle to provide some insight on "picky" detail:

Do VFR corridors even exist? The AIM defines it: 3-5-5

b. VFR Corridors.

1. The design of a few of the first Class B airspace areas provided a corridor for the passage of uncontrolled traffic. A VFR corridor is defined as airspace through Class B airspace, with defined vertical and lateral boundaries, in which aircraft may operate without an ATC clearance or communication with air traffic control.

2. These corridors are, in effect, a "hole" through Class B airspace. (See FIG 3-5-2.) A classic example would be the corridor through the Los Angeles Class B airspace, which has been subsequently changed to Special Flight Rules airspace (SFR). A corridor is surrounded on all sides by Class B airspace and does not extend down to the surface like a VFR Flyway. Because of their finite lateral and vertical limits, and the volume of VFR traffic using a corridor, extreme caution and vigilance must be exercised.

I have flown in Miami, Tampa, Orlando and Phoenix Bravo areas and do not remember ever seeing a "hole" through Bravo.