If it’s free, go for it. You won’t lose anything by doing it, but how much you gain is questionable. As above you can research anything online and I don’t think the vet schools are massive fans of it as it’s not available to everyone. Doing more work exp and own research is better. I did the RVC 5 day residential in year 12 and don’t think I had the chance to mention it much in applications, feel I didn’t gain that much from it, but it was a fun little holiday I guess and it was free so not losing anything. Don’t do any paid “schemes”, those are just money grabbing.