For Instant Request..how much did you tip? Their website recommends $150. Since we're off season we're only paying $595, so 20% of that would be roughly $120. Do you think that's ok?And for Imagen International photography...on their contract it says "your pre-gratuity balance is....". I though photographers weren't tipped because we receive a product. What are other Imagen knotties doing? Tip 20%? And we're having a lead photographer and an assistant, so should we split the 20% tip between them (or however much we tip)?Thanks! 10 days to go!!!!