Crash course

The purpose of crash course, is to test your level of preparation. It will definitely be beneficial in gearing up yourself with a positive approach to write the examination. Best of luck.

Actually im not that good in sfm and wanted some concept clarity so shud i join it...d pvt clases r bit exp regardin crash course and therfore i was optin out for it...pls if sum1hav an exp in it let me knw.

Instead of going to crash course buy any good book from market and start reading concepts. If you read on your own it will give you better clarity on concepts. Crash course will run at a pace by assuming you know all the concepts. As you said, you need concept clarity then drop the idea of joining crash course. Crash course are meant for practice. AN Sridhar is very nice for concept clarity.