Sitting certainly puts more pressure on the part of the briefs that usually the most saturated, 90% of the leaks I get are when I transition from lying down to sitting up in the morning as a heavy night wetter, of course, the pad is very saturated at this point. that being said how the product fits is a big contributor to leaks can you pint point if the leaks happen in the front or more to the back? how the tapes align can affect how the product fits. also, do you place the brief on when lying down? your body changes shape a bit from a more vertical to lying down position and this also can have some effect, I know you have tried many products to alleviate this issue so you should have a good sense on how a product fits you so other than that you may be just outputting more fluid than the products can handle at one-time boosters may help But I think you said you use them also.
_________________
Incontinence does not Define NOR limit you!
http://www.realworldincon.comJoin us on Discord!
https://discord.gg/VCUBeUdrealworldincon@gmail.com#realworldic on Facebook and Twitter