I have had my delta 13 for over a year w/o inserts and my aramith tourneys for at least 8 years and don't have any issues could it be possible your set could have a defect
vantage
I had a vantage for a couple of months it played very well but traded it for a Gen 3 314 which feels better to me.... best to find someone or a dealer who has one and try it for yourself