We're in the same boat. We have two /24 (/23) that we advertise through our ISP(s) and we've been hesitant to sign an LSA/RSA because it seems to put us in a position where we may be held to standard and fees that we weren't previously held to.
If there was an easy and straightforward path to onboarding that would go a long way, but every time we look into it the process seems convoluted and unclear with too many options and potential foot guns.