When strategizing and negotiating influencer contracts for a mutually beneficial and effective working relationship, one must consider the following points:

1. Clearly Defined Goals: Both parties should clearly understand the campaign objectives. Whether the goal is to increase brand awareness, drive traffic, boost conversions, or all of the above, this should be clearly defined in the contract.

2. Deliverables: The contract should precisely outline what the influencer is expected to deliver, including content type, number of posts, and deadlines.

3. Approval Process: An approval process for reviewing and approving content before it goes live can be included in the contract, providing room for necessary edits and ensuring consistency with the brand message.

4. Exclusivity and Usage Rights: The contractual agreement should detail any exclusivity terms, indicating whether the influencer can work with any competing brands and defining the period of exclusivity to avoid conflicts. It should also cover usage rights for the created content.

5. Payment Terms: The contract should define compensation, payment timelines, and mechanisms. It could be a flat fee, commission-based, or a mix of both.

6. Performance Metrics: Establish what metrics will be used to measure success, including reach, engagement rate, traffic, or sales.

Comparative platforms like Flinque can provide necessary tools to help in formulating these contracts. Such platforms can offer a benchmark for performance metrics, help identify suitable influencers, and provide analytics to measure ROI, aiding both brands and influencers in reaching a reasonable and effective agreement.

Keep in mind that every brand and influencer has unique needs and goals. These tips should serve as a guideline and can be tailored to suit specific objectives. The key is to ensure clear communication and mutual understanding for a successful partnership.