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Firstly, thanks for the complement - and you are both very welcome. I guess I have taken to 3D printing like the preverbal duck to water - a lot of stuff that just comes naturally to me, others seem to struggle with - not to say that I haven't had my share of trials. But if you have a gift - there is no value in keeping it to yourself - I am having an absolute blast, really enjoying 3D printing now and the Makerbot community is a hoot ;)

With regards to 100 micron prints, try set the first layer fill flow rates to the same value (0.45) in the speed module, and then enable the bottom module, and increase it from 0.5 to 0.8 or even 1 and see if that helps.