I've had the FC-Donut for about a week now. I'm still waiting for a banger to come in the mail but I've had a few dabs through it with a drop down. A bit awkward with the drop down seeing as it already has the joint pretty far from the mouth piece. It does give good flavour but not as good as the FC-710.
The glass is thin and the mouth piece is a little out of line from the joint and perc. The joint also leans back towards the piece a few degrees. No marks or scratches and no bubbles in the welds.
It came well packaged. Box inside a box with styrofoam between them. The piece was bubble wrapped and had newspaper to fill in the gaps. There was a fragile sticker on the box too.
I tried it with the solo but wasn't a fan. Not enough volume to milk it really well.
Where this piece excels for me is with the lotus. I had to carve a little dent in the bottom of the lotus cap to clear the stem. It wouldn't be an issue if the joint was flat/level. The mouth piece is in the perfect position to see the pan when heating.
I think it's overpriced but I'm still happy with it. I will probably use it as a travel piece as its a good all arounder and smallish. It will fit in a medium size safe case with my HI, battery powered VK, Lotus and accessories, and a banger and dab supplies for an awesome off grid weekend.
http://www.dhgate.com/product/2015-...oking-bongs/245724530.html#s1-0-1a|2508343508
Can sorta see the crooked mouth piece. Not too bad...