Ok, got the shelf up a few weeks ago but been busy and on holiday until now.
The Stands unique shelf arrived with 5 x expansion bolts and reasonably clear instructions. This isn't rocket science but some clearer pics would have been nice.
D Louth gave some very good advice earlier on in this thread and I fully endorse it with bells on. The house is turn of the century and the construction of the walls varies considerably from surface to surface. I conducted a full and comprehensive 'survey' of the destination wall by rapping it with my knuckles. It
seemed okay.
I drilled the mounting holes, probably too big for the bolts. A drill bit 1mm greater than the bolt diameter is probably the most you want to do. I used a 12mm for a 10mm expansion bolt. The expansion bolts were seated and the shelf mounted. I tightened the bolts up ensuring that the rear plate remained vertical.
I then nervously placed my TT on the shelf. It didn't seem too sturdy but it didn't collapse and after taking the precaution of placing a stool underneath, I left it for a few hours. On my return I could see three obvious blisters in the wall as the 25kg TT began to pull the bolts out of the wall. As it turned out some of this particular alcove wall is up to 3in of filler and plaster. The bolts themselves were mangled and instead of extracting them I drove them into the wall and covered with filler. Bollocks
After some mild cursing and a run to calm down I bought 5 new bolts from B+Q and started again the next day. The other alcove has 1 sheet of plasterboard over solid bricks and was more suitable. It's been in place for a few weeks now and (touch wood) no problems. The shelf is as sturdy as the mounting method and I'd recommend it to anyone after something a bit more substantial than the target type shelves out there.
I removed the feet from the TT. When they are attached the footprint is huge and stretches even this shelf. I'm using 4 x Stands unique Carbon Fiber spacers instead. Leveling is carried out by the shelf cantilever.
Really impressed with the mounting bolts. When in B+Q it was only with great effort I refrained from buying a 25mm set and constructing a crazy wall mounted equipment shelf for all my kit.
Oh and the arm is the EPA 100 that Johnnie at audioorigami has serviced, rewired and replaced bearings on. Sounds good to me.