Im about to sign up for a training course from Zero hours to CFI. The program being offer is 250 flight hours, all single engine OR 250 flight hours, with 35 Twin engine, for $3500 more.

Which one should I choose? And what are the benefits of getting twin hours in the log book given that my goal is to become a commercial pilot.

You'll be more competitive with the 100 hours of twin time, but if you plan on instructing in a twin then why pay for the extra time when you'll build it as an instructor?

Is it 250 hours in the airplane, or sim and plane combined? Have researched the career change closely? Have you flown at all before?

You'll need to get twin time at some point if you ever want to fly something with more than one engine...25 min for an airline gig, more for a non regional multi gig most likely. I would do it if you can afford it. Getting your commercial and paying for 250 hours then having to pay for multi time later will be more expensive (unless someone else is willing to foot the bill and train you and get you enough multi time to get insured, which is unlikely).

$100/hour for twin time is not too bad, since some of it will be dual.

Some companies will sell the same twin time to two students, and then they have to share the time as pilot flying/safety pilot. This can create problems with future employers if you don't log the time correctly.

Make sure you know upfront if the time will be shared and logged as SP, and make sure you know HOW to log the time...

- SP can only log time when PF is under the hood.
- Therefore SP cannot log taxi, TO, LDG, or the full flight time (typically subtract 0.3).
- SP role is not applicable in IMC, so neither pilot should log IMC.