thinking about sas 2 air

Thinking of buying an sas 2 air for ipsc .

Wondering about reliability since it has alot of " lightning cuts" from factory and the slide looks scary thin some places ?

Also interested in any other info about reliability.

I shoot about 1500 rounds a month and cant afford to buy a new one each year :p

The one im looking at is used and has 2800 rounds trough it.

Will add photo of my beloved 1911 classic