Will probably go direct to Regal and Volvo if necessary.
If you can show other evidence that there is a defect within your transom shield, or boat design, etc. etc. and not user error then you want to directly involve Volvo ASAP as this is more of their problem to "note" even if Regal is to blame somehow as they'd need to work it out together.
At first glance, most of the three parties involve tend to want to blame the owner until proven otherwise not to be the case. Then comes the time factor especially with rubber components for Volvo as they cover themselves well with recommended bellows replacement at 50 hours last I recall it to be. The highlight below is why they tend to not go to deep into every failed U-joint bellows complaint they encounter and if there is really no known issues then usually there's not to much extra effort given to want to help cover the damage even being that new.
That mentioned, even if there happens to be known issues, while they'd help you out of course, you're still on limited time because it's a rubber component as you'll be able to see in the following link back when there was a known issue of a different drive system than yours which was documentated even online during the time frame,
http://www.my.boatus.com/consumer/pd...sVexOwners.pdf <Again this is just an example for a tight time frame the manufacturers tend to want to go with when it comes to rubber components mostly due to the issues they've encountered over the years.
Transom Shield: Intermediate shaft, intermediate shaft bearing, gimbal bearing, U-joints, drive yoke, steering yoke plus the transom shield and gimbal housing assembly - if damaged beyond repair by a covered component.
Coverage excludes water entry related failures caused by holes in or physical damage to rubber U-joint bellows or exhaust bellows....
2PLUS4 TM New Sterndrive Covered Components
Hope this gets all sorted out for you, good luck.
Closing up this topic to keep things congenial.