I really need help with this chainring and cog matching thing....currently i am riding a 42/16 and its hard for me to skid stop, I have taken a look at brown's and rabbit's gear chart and it confuses me..... my legs aren't weak (for those of you who are going to imply that, have been running track for 4 years now as a sprinter/CC/Hurdler)
Current gearing: 42/16
Terrain: flatland/minor hills
1994 Trek 1200, 1984 Raleigh Prestige, 1980 Motobecane Grand Jubile, custom 531 track, and a bunch of tinker bikes of all type
Find some gravel or a dirt road. Or some wet grass. Practice there. If you fall, it won't hurt as much. Plus, there is far less friction involved. Once it clicks how to lock up your rear wheel, move to the pavement.