$12k ACV with founder-led sales is the marketing equivalent of being stuck in the middle seat on a long-haul flight-too cramped for a full SDR, but too pricey to just sit back and hope inbound works. Your SDR experiment cratering in three months? That's not a surprise. Cold DMs at that price point scrape by with maybe 2-3% positive replies, but the real kicker is you're trying to mix two completely different motions that need different operators.
The trick that actually works: split the voice from the execution.
Your voice stays founder-led. That content engagement you're getting? it's your highest-intent signal, so don't let someone else hijack your face or you'll kill the one thing that's actually working. What you outsource is the system around it-harvesting who liked or commented on your posts, scoring them against your ideal customer profile (say, RevOps leaders at Series A-B SaaS), building a prioritized warm-DM queue, and drafting DMs in your voice for you to approve before they go out.
real numbers I've seen at that ACV with this warm approach: about 3-6 SQLs a month from engagement work, compared to 1-2 from pure cold DMs into RevOps lists. The cold route hits a volume wall because LinkedIn caps you hard around 25 connection requests per day. any agency promising double that is either lying or using automation that'll get your account flagged faster than a fake review on Amazon.
on the restrictions front: never, ever combine Sales Navigator scrapers with automation tools. that's the death combo. stick to manual or API-level DMs routed through human approval queues, and warm up your account before you push any serious volume.
It's a pain, but separating voice from execution turns your LinkedIn into a pipeline machine rather than a spam cannon. Good luck