Can you help me out with a couple of questions? I was curious if between adding layers of Klasse SG, if anyone has used the klasse sonus QD to perhaps deepen the shine? Similar to zaino users who throw on some Z6 in between their layers of Z5 or Z2 etc. Their should'nt be any bonding issues with the sonus detailer right(unless it has alot of AIO in it where it will clean some of the SG off?) Which brings me to my next question, I did purchase some FI to remove any residue I might encounter, but now I'm wondering if I should use some Sonus instead if I run into any hazing etc. Also when I'm washing before another coat of SG, I'm using the pinnacle bodywash shampoo(Is that okay?) Thanks for all and any input into these questions that I've been wondering.... JB