I actually don't recommend you assume LS will beat all other rates by .1%, it is pretty hit or miss, the only way for sure to get them to do rate beat is to get full documented approval (not pre-approval) from the other bank in writing (with their letterhead and offer details) and then mail or fax it to them.
They have really tightened up their criteria for matching other loans... for example a few people gave up on them matching Allegacy since Allegacy would not provide enough documented proof of loan rate for LS to act on.
I got matched today. LS originally approved me at 3.69% unsecured. SDMCU offered me 2.49% secured. LS did the beat. 2.39% unsecured. Finalized the loan. Funding via ACH into my checking account on 9/24. Tesla delivery appt on 9/28.