Email is the primary channel
Most investment decisions still start in inbox. Email allows longer context, attachments when appropriate, and thread history. CapSignal Launch tier is email-only; Scale adds LinkedIn.
LinkedIn for partners who are active
Connection request plus short note works for partners who post frequently and engage on the platform. Don't duplicate email copy—reference the email thread if they received one.
Sequence order
Email first, LinkedIn day 5–7 if no reply and the partner is active on LinkedIn. Never both on the same day—it feels like surround-sound spam.