Practice your disassembly and reassembly, as at the end of the class the fastest wins a pistol , or at least when I went through. Also you get to order a new pistol, It was 265.00 when I went through, but definitely a discount off of msrp, + an 11% excise tax. I went through in 1993, I hope these things still apply.
Do you know how to detail strip, if not I will try to let you know the tricks.
Good luck, you will learn some things anyway.