Stop prevaricating and buy it today!
Get a CB6000S (or just standard if you’re big) from Lovehoney and learn what size works for you. Lovehoney because they offer a whole year’s free return, no questions asked so if you don’t like it you can get your money back, or try one of their others, but the CB6000S is definitely where to start as there are 25 different ring and gap size options you can explore to see what works best for you.
If you go to their offer page there’s some extra discounts
US – 15% off if you spend $50 with code
UK – £20 off a £90 spend with code
And if you’re a new customer to Lovehoney there are between 20 and 25% discounts with this link – Lovehoney New Customer discount
Here’s more on our experience of using one: https://keephimcaged.tumblr.com/post/144054761093/hi-i-love-your-blog-my-boyfriend-and-i-are