Coming soon!!!

Preparing a grading submission and considering having the cards sent to the Vault upon completion rather than back to my home address. 1) Do I need to set up any kind of account beforehand other than my PSA/Collectors account, or is it sufficient to select "Send to Vault" after entering my cards in the submission form. 2) What is the process to have my graded cards sent to my home at some point in the future 3) Is there any meaningful cost savings by waiting until I have multiple submissions worth of cards in the Vault before requesting shipment to my home? Thanks!

PSA 10 1975 Topps #279 Milt May - https://youtube.com/shorts/Gr0boHoYFfA?feature=share PSA 9 1975 Topps #319 Johnny Oates - https://youtube.com/shorts/_vKIMMku3r4?feature=share PSA 8 1975 Topps #88 Tom Egan - https://youtube.com/shorts/61amegrUHjc?feature=share PSA 7 1975 Topps #649 Jack Heidermann - https://youtube.com/shorts/kwlFy6V4oGg?feature=share PSA 6 1975 Topps #341 Hal Breeden - https://youtube.com/shorts/OxETvg1_nBo?feature=share PSA 6 1975 Topps #448 Frank Duffy - https://youtube.com/shorts/kU7-CMmarJE?feature=share What makes these graded as they are? I ask because to my untrained eyes, the lower graded cards sometimes look as good as the GEM MINT 10 does. What am I missing?