Multiple Straddles

[saxman007]

I've done a quick search and found a lot on straddles, and found the following scenario:
In Limit games, the straddle is the size of the big blind, e.g. 10-20: sb=5 bb=10 utg=20 utg+1=30 etc.
But here's the question I'm interested in:
In NL/PL games what's the utg or utg+1 straddle? There's been debate that it's a) the same as limit, b) it doubles with each straddle sb=5 bb=10 utg=20 utg+1=40, or c) since it's NL/PL you can straddle what you wish.
I know this can be a -EV move, but if the drunks want to do it why not [img]/images/graemlins/grin.gif[/img]
Thanks for the responses
--Sax