Volar chain n sprockets

I've not heard of Volar, but the ad seems to include legit stuff ?
I've pretty much tried all the cheap chain/sprocket sets ebay has available and found myself constantly adjusting the chain during a season and replacing each spring. the cheap colored chains would have cost me a set of cases if I didn't run a case saver from Ken Oconnor Racing. the first one made it a week, the second one made it 1/2 mile. both were on decent shape but used sprockets.
then I decided to spend the extra 20 sum bucks and get a $70-ish setup.... JT sprockets and Primary Drive non o-ring chain from ebay. the last I rode regularly I adjusted it a little only twice that season.
similar to these .....

https://www.ebay.com/itm/Primary-Dr...:ShippingMethodStandard!15909!US!-1:rk:1:pf:0

https://www.ebay.com/itm/JT-Chain-S...9bDb34:sc:USPSPriority!15909!US!-1:rk:37:pf:0

spend the few extra $ and save constant adjustments, premature wear and possibly broken cases, and always replace them as a set ... chain and sprockets together !
JT, Primary Drive, RK, DID, Renthal to name a few, all make reputable stuff.
Volar ?