To add to the list of experiences, we use a L1 Model 2 with 2 B1 bass modules. Our group is an acoustic duo/trio where we play a variety of folk, jazz, light rock, Americana etc, but no electric guitars. For vocals, we use SM 58 Betas and use a 12 channel Yamaha MG series mixer. Finally, we also use 2 B1s because our daughter plays upright bass with us occasionally and we like having a bit more power in the bass register. We place the L1 behind us in most situations. We play for audience sizes very similar to yours.
For smaller venues and audience sizes (30 or so) where the L1 might be overkill, we recently got a S1 Pro that we use with a mixer. If our daughter plays with us, she might go through a separate bass amp in those situations.
I think your plan of getting a L1S makes sense for the audience sizes you mention. The 1S wasn’t available when we got our Model 2. For large outdoor gigs, the Model 2 would be better, as with its 24 speaker tower, it will certainly project more, but how often do you play those and would it be worth the extra expense?
Just an idea to throw out, if you don’t keep your L1 Compact. Get the less expensive L1S and later on consider investing in a S1. With its battery powered option, we’ve found we use the S1 not just for smaller venues, but along with the L1 in many situations. For example, where you need to put the L1 in FOH to get more projection we use the S1 as a monitor or use the S1 as an extension speaker to the L1 for additional sound coverage. The S1 is certainly optional, but worth considering.
There is a debate among forumites about the merits of the B1 vs the B2. The debate seems to center around type of music you play. DJs want a very pronounced bass while we find the 2 B1s are a bit tighter sounding and just enough bass, where the B2 would be too much. You can search the forum for these prior discussions. The B2 does have a 3 way switch to allow it to emulate “less” bass and sound more like a B1. On point in the B2’s favor, with bigger speakers, it would project better at larger venues. It’s physically heavier and bulkier though. Regardless, it’s essential to get a bass module to use with the L1.
Hope this helps.