Pro-Ject VC-E2 Arm adaption?

Hi, my first post:
So in early December I was tempted by a Black Friday deal on ebay on 30% off Proj-Pect vacuum cleaners. I'm really pleased with how it works but was not impressed with the fact I'd have to buy a separate arm for 45s and no option for 10" records.
Has anyone blocked off a section of the 12" arm to adapt it?

You can still clean 10" singles using the 12" arm. Unfortunately, you will need the adapter arm for 7" cleaning.