I really hope to get some sound advice here from more experienced people. My wife and I will probably place an order from MM in the near future - jailbird or watchful mistress. It's a big investment, so I want to get the right fit. I use the guide and the measuring rings from MM, and I have read several guides online, including this one that I found to be extremly helpful https://www.chastitymansion.com/for...measuring-system-for-custom-fit-devices.5673/ I also posted a thread here eariler where I recieved some great advice, including that we should probably try a metal costum device. So the last few weeks I have measured myself time and again, and much seems clearer, but it is very difficult to decide the exact sizes. 1) LENGTH Of course I always try to measure myself while being completely flaccid, and in general follow MMs measuring guide. Still my measurements vary. The average seems to be approx. 2,0 inch, but when I am really small I am about 1,75. My measurment will be subtracted by 0,25 inch, in accordance with the MM measuring guide, so I will end up with either 1,75 (based on average) or 1,5 (based on small measurements). Should I go for the small one? (I am uncut, in case that matters. Btw, I will order the inverted bars, as adviced by MM.) 2) The base ring is for me the most difficult. In short, my first device was from Holy Trainer. When I followed their guide I ended up with a ring that cut the blood flow. Even from the biggest rings, I get an itching/burning sensation after a few hours only, or sometimes even minutes. If I follow Pansy Tarts guide (se link above) I should probably go for 2 1/4 inch or bigger. At the same time, I have no clue whether that will be the right fit or not. My hunch is that I should order a large base ring, but I don't know what happens if it is too large, and how to measure for it in a good way. Anyone else had to struggle with far too small rings? Any advice?? 3) Double/triple base rings?? I guess I am rather loose down there, perhaps that makes it more complicated. My hunch is that a douple or even triple or quadruple base ring might help. But I don't really know. What's the benifit of double/triple/... rings? (For example, can it help with the burning or itching, or is it meant for making it more secure, etc...) 4) Cage inner diameter: A few times when I am really small #2 of the MM measuring rings seems best. But most of the time ring #3 (slightly bigger) seems to be the right one. According to Pansy Tarts guide the ID should not be too small as that can make it uncomfortable wearing, so I guess #3 is the best one?? Any experience?? 5) WM vs. JB. My wife initially wanted to go for watchful mistress as it provides less access. But from corresponding with MMs costumer service, I have learned that 1,75 or 1,5 WM will give very little access and therefore it could cause sweatiness. I have sensitive skin (in general) so if it gets really sweaty I wonder if that could cause skin irritation. WM vs. JB for us is a question about less access vs. better prospect of long time wear without skin irritation. But I don't know whether I am concerned for no reason. Any experience??