06H145702R turbo reliable?(2.O 2013-2016)

While my car is apart, I thought I'd address the common issues a lot of A5 owners deal with. I have a 2010 A5 and the extended warranty is not in effect.

My turbo waste gate is still really tight, but my engine only has 47000 miles. My understanding is that it's not a matter of if, but when the waste gate issue will occur. So I'm hoping to be proactive and prevent becoming a victim.

Looking at the forums, it seems the general consensus is to buy a 2013-2016 turbo... and I've also heard to look for a particular part number. I've got a 06H145702Q turbo....

It seems most of the used turbos for 2013-2016 2.0's for sale have part# 06H145702R

Audi has since replaced this part number with 06H145703S and much more difficult to find used.

Does anyone have any input if the 06H145702R's have addressed the leaking waste gate issue??? Or should I continue to look for the elusive 06H145703S??

Thanks.