I've been using Metzler ME33/ME99, now the Lazertec series tires since around 1986 on my '81 R65 and now the '82 LS .
Only one front tire gave me issues with cupping, my tire pressure gauge was woefully inaccurate, indicating 10 psi high, so not a fault of the tire .
I've gotten a consistent 11-13,000 miles on the front and 9-11,000 miles on a rear for the last 30 years .
Only negative I've experienced, is in colder temps, don't ask too much from the tires until they are warmed up, usually at least 11 miles or so in temps under 50 F.
I run higher tire pressures, I don't know if that makes a difference or not, usually around 40 psi front and rear, I service them to 40 psi and then let go down to around 35 psi before I inflate them again .
In the high temps here in the low deserts of south central Aridzona, a 3-5 psi pressure loss per week is common in the ' hot season ', late April to early November .