Good luck! As a founder I would want to know which particular markets you're strong in (either have experience or personal relationships). It will be hard to stand out talking about track record alone, so try and appeal to specific founders who you'd bring the - most - value to.
Eg. if you're particularly experienced with gaming, don't bother trying to sell yourself to a SaaS startup, there will probably be someone there specialized in that.
I didn't mean you personally so much as angels and VCs in general. But sure, given how much the funding environment is changing I can't imagine that it would hurt to experience what it's currently like even if you've been through it in the past.
Of course I'm speaking here as a founder who has never raised any funding, so everything I say on the topic is deserving of multiple grains of salt.