So I've just bought my first stand to pee device it's a 5.5 " STP 3 in 1 FTM Prosthetic penis lifecast packe. From ECprosthetic.com and I can't wait to use it. Gotta wait 4 - 5 weeks for it though As it's coming from the US! ECKKK has anybody else used a stp? Any advice how to use it or is it just natural Ohhh canny wait. scared it might be a little to big thoguh hahahha oh well gonna impress the lady's

They tend to take a little practice, like in the shower, then with clothes on. I hope it works out for you. The 5.5 inch may be too much for just a packer.