I prefer to put enough to make me care personally, but It's obvious to advise 'try first and decide later'. Not in a rush here. You can always try and I'll reimburse you If you're not happy or simply change your mind.

I count on myself owning at least 25-50% of the tokens (purchased with my own HBD) for a long time before the fund gains enough trust/recognition.

Having said that, I never launched a token. So it probably will an enriching experience for me. (All the responses so far are very encouraging).