What does a partnership mean?
If you have a partnership and it forces you to open up your financials and change your figures then a partnership is beneficial.
In the words of Guy Kawasaki, sales fixes everything. When you have sales staff are happy, investors are happy. Sales fixes everything. You have to focus on Sales.
The reason for your company is to create customers and obtain sales.
Focus on the prototype, get it out rather than creating your pitches.
A prototype and demo are worth a 1000 pitches.