I prefer the two piece Weavers because they don't interfere with loading and unloading
This^
Especially important when wearing gloves or putting on drives and you have to load/unload a lot.
I had a set of basic Weaver rings on my 99 for years until the scope went TU right before deer season last fall. I swapped scopes and used a set of Burris Signature Zee rings I had on hand. Seems to be working just fine.
BTW, mine's a 358, I couldn't keep the Leupold STD rings tight on the rear base, I finally threw them away and went with the Weavers.
Dale