Hi pepsi max,
Since pumping I (usually) need to take less to correct a low, but it does still need to be quick acting, so if I over-do it, I will then go high... so I take less than I used to... but with the exception that if I have been exercising, or am still exercising, then I may need to take a lot more than a sitting-down type adjustment, as my BG may still be dropping if I have been exercising for a while.
Does that make sense? I thought that it was worth describing exercise as it is significantly different for me.
Good luck.