I haven`t used that one [Ultra]..sounds like it`s even stronger than the ` normal` one....you might not get /have any white -coloured residue when using that one ? Anyway, here`s the thread you referred-to :
http://www.forum.toplace.com/showthread.php?tid=5984
Just apply a thinner coat than last time and see you you get on.... this game is a bit like walking a tightrope, with a lot of trial and error until you nail down your ` own` routine etc. Sounds like you`re enjoying the ` new you` anyway so that`s the main thing ! Regards.