There are vintage LAs and newer ones that are different designs. Both have high baffles and medium chambers. Either could work if you get a good tip opening for you. Consider a .105"-.115" tip. This would be about a 7* in the vintage and a 10 in the newer LAs.
Consider a Runyon Quantum. Runyon makes the new LAs. The Quantums have the same interior design and are easier to find in the larger sizes. They also come in metal and Delrin (the "Custom"). The Custom is inexpensive and really rips. The metal is a bit more mellow, but still gutsy. Rovner L-13s are good ligs for these MPs.
Consider a Runyon Quantum. Runyon makes the new LAs. The Quantums have the same interior design and are easier to find in the larger sizes. They also come in metal and Delrin (the "Custom"). The Custom is inexpensive and really rips. The metal is a bit more mellow, but still gutsy. Rovner L-13s are good ligs for these MPs.