There is some ASM bashing but I've got a G3 and it's working prefectly fine for me on my 145g. I wouldn't be blaming the skimmer itself for lack of skimmate but more the set up.

On mine have it adjusted so after removing the cup to clean, when I first put it back on, after about 10 seconds the bubbles are about 2/3 up the cup. Works out then after maybe 5-10 minutes foam is surging to top.

Not sure how critical water level is since have the gate and feed mod (MJ1200) but level is constant at 10.5" up the body (same as before the mods and worked okay then as well).

Seen waste also referred to DOC (dissolved organic compounds).

As for cyano, I got a outbreak after tank up for close to a year and none before. There were no changes other than treated tank with Interceptor. Was doing lots of siphoning and water changes to no effect but added a some macro to the sump with noticable decrease in about a week and basically gone after two.

Mine is at 8 inches but I can easily move it to 10.5 inches. Think that would help?

Can't see how it would hurt and if easy, might as well try.

I have dealing with the problem for few months now on a not so big temporary puffer thing. Those fish kind of messy and big eater =( .. got a Remora Skimmer and hang-on filters which didn't help much and the skim cup fill up every day =(

Now everything seem to be under control when I pull out my Two Little Fishies Phosban Reactor and use RowaPhos Phosphate Removal Media to polish the water