Bell tents...PIG or ZIG?

[shropshireblue]

I've been lusting after a Bell tent for a couple of years now and seeing as I'm planning on camping this year I think I can persuade DP into purchasing one (with a gentle nudge). I've read so many threads about PIGs and ZIGs but I need some more advice. I don't mind creepy crawlies, but slugs I just can't abide. I'm also worried about water getting in from soggy campfires when it rains.

So, to all knowledgable Bell tenters, anyone found a new love of expletives when confronted with zips? Has anyone woken in a mini lake in a PIG?

We used to have a separate groundsheet one but found the "folding under" technique of the groundsheet was a bit of a faff and not foolproof so if you missed a bit of tucking under and it rained then rain came in where the groundsheet was on top of the tent. We treated ourselves to a ZIG (4m) and have never looked back - it's quicker to put up and the zips are really easy to open/close and no danger of water coming in. Also find a 4m ample for us and our 3 kids and think 5m ones are a bit unwieldy.