Hi,
Going by the takeup of GPT shares, everybody who asked for the 25% over their 1 for 1 allocation, got it.
Premium available about the same.
Always some people who wont/cant take it up.
Depends on how they structure it[ie set number, proportion of extras asked for, multiple of present holding], but in my opinion , worth throwing in at least 25% extra. Opportunity cost not huge.
cheers