hi guys that 5k ins aproaching.im looking for tips.im currently doing 6*1k in 3.15 with 2 mins rest between ,one tempo run 30.30 mins 5 mile on tough hills.the rest run at in or around 7 pace.what should i be aiming for.its a flat course.previous p.b. is 17.11 but i am reckoning 16.30.Maybe im being too ambitious?