Guys, I'm 16 and am going to Lichfield for selection. I've got an 11:25 run time and good at sit ups. My selection is sometime before the 15th and I can only just do one heave, BARELY. Please give me tips on how to develop them fast. Also press ups but they're improving. I do negative heaves but they don't seem to do much. Thanks in advance. (Also anyone going to lichfield at the same time as me, lets talk - get the upper hand for the icebreaker!