Moving to a smaller cage

[NiceKitty444]

A little background:
One day, being horny, I decided to order a cheap plastic cage from China, and in fact it was of terrible quality. But I was very interested in this and I decided to order a holy trainer.

And so, now I have Holy trainer V4 size: standard. At first it was even difficult for me to fit into it, but over time I began to notice that I did not fill it completely. Sometimes my head even stays in the shaft without going into the right space.
I have read that people are quite comfortable in small cages when there is no space left. But they have a problem with cleaning, for me this is not a significant problem, so there are practically no minuses for me. And I was thinking about getting a smaller cage, but I think the "Small" size will not be small enough for me, and I need the "Nub" size, but I'm not sure.
Since I did not find anything on this topic, I decided to ask what you can advise on this? Can I go up to "Nub" size by skipping "Small" size or is it better to do it gradually?
It's a bit pricey for me so I don't want to spend extra money buying a cage that will again be big for me.

[505dude]

I'm not sure about fitment, but I think I got my Jailbird close to what it should be. It feels comfortable and I'm surprised I can get myself in it, it takes a bit of effort.

[NiceKitty444]

I'm not sure about fitment, but I think I got my Jailbird close to what it should be. It feels comfortable and I'm surprised I can get myself in it, it takes a bit of effort.

I'm not sure how close it is to HT, but it seems to me that they are still different (in form / ideology, etc.). I'm worried about the question of whether I can fit in the HT Nub after the normal size, how difficult and comfortable it will be

[ChasteCouple82]

Get a knock off tube from HoD in a small and/or nano to work down in size. It’ll work with your existing base ring and not cost nearly as much

[JimR]

NiceKitty444...Different sized tubes for the HT V4(Chinese version) are available from some sellers, although they might not advertise them. As I recall, price from one seller is ~ 8 USD, including shipping. Not sure if they fit the real HT.

[NiceKitty444]

Get a knock off tube from HoD in a small and/or nano to work down in size. It’ll work with your existing base ring and not cost nearly as much

NiceKitty444...Different sized tubes for the HT V4(Chinese version) are available from some sellers, although they might not advertise them. As I recall, price from one seller is ~ 8 USD, including shipping. Not sure if they fit the real HT.

I actually also ordered it from China but judging by the price and quality it is very close to the original. I didn't find an option without rings from the seller but I think I can ask, thanks for the advice
I would be grateful if someone shares a link to a product without a ring with worldwide delivery