I have the above extension table that came with my Horizon 7700, I like the idea of the extra space it gives while sewing but I find it is too high and my shoulders and elbows are at an uncomfortable position. I bought an adjustable chair but still couldn't get the right height for me, so I ended up taking the extension table off again. Anyone else had trouble finding it comfortable to sew with it on or is it just me. I'm on the short side so that may be part of the problem.