Mike!! - don't care how much they are. They won't give you ever so many anyway but if they do give you different types, then they expect you to play in any case. Not like you are likely to use a million, just for the hell of it!
At the first sign of it hurting even if it's only just gone in, watch it like a hawk and in any event, if you see any blood - always remove it and start again.
I thought you had said your tummy has quite a few 'iffy' areas? - in which case you certainly will need to experiment with thighs, bum etc, won't you?
You want to make sure you are comfy with it before you go live - and that is precisely what this week is for .......