Surely it can't be difficult to refund your investors the money, create a list of everyone investing and then accept payment come launch, if you want honesty & transparency then this the most honest way you can go with this coin and if you do it this way you will have investors jumping in by the bucket load and will get a rep as one of the most honest coins around
The benefits really outweigh any negatives in this situation, it's win/win for everyone, probably moreso for yourself and the coin than anyone else
Your idea is equivalent to premining the 5M HVC and putting it for sale immediately after the mining launch. We won't be doing that.
If you are looking for a zero risk way to obtain a stake in an IPO, then you won't find it here. Current IPO stakeholders have taken substantial risk while others have not. It is precisely this risk that rewards them with a larger amount of Heavycoin at the launch. The terms of the IPO are fixed and we will not be changing things.