Before baileys bought the rights to sell in the states. Which IMO ruined it at a cost point for folks.
Goran and I talked about it on my old website back in 2011 Feb. I even had a prototype with the 3 different rollers. They were sold with only 1.
http://chainsawrepair.createaforum.com/chain/atop/msg85863/#msg85863
My first atop chain took about 30mins and was faster and I didnt know what I was doing back then.
ATOP sq my 1st try using new guide..................3.96....3.88...3.76
ATOP square sent in by Goran...........................3.41...3.38..3.34
Stihl square RSLK factory sharp..................................4.09...4.53 ...4.13
Oregon square CL factory sharp..................................3.88....4.20...4.25
Stihl round RS factory sharp....................................4.18..... 4.21....4.12
Talking with Goran in emails and he might be interested in coming over here in a sub-forum to help you guys out and answer questions.
There has been some pretty quick chains I have seen come off the ATOP square guide for softwoods and good square work chains. This was done by another friend I know that bought one to try out.
He is using a different file then what comes supplied and likes the results he is getting.
Weird thing is we both use it different when watching each other file with the guide and get different angles. So it comes down to the user input too.
Chain Goran sent me too. ATOP square filed chain in 10"x10" very dry firm poplar cant that has been setting over a year. Saw used was DN 357 set very rich by ear and then checked with tach at 13.8K.
Found a old video today. 2012 10x10 with Jay testing the chain build off chains on a stock 3120 with 9T and unlimited coil.
I was my atop chain I sent in. Nothing special
average time for 3 cuts.
Chain A 2.47 2.28 2.40 average 2.38
Chain B 2.50 2.57 2.31 2.48
Chain C 2.94 2.65 2.56 2.71
Chain D 2.53 2.54 2.35 2.47
Chain E 3.03 2.50 2.65 2.72
Chain F 2.72 2.66 2.91 2.76
Chain G 2.71 2.63 2.40 2.58
Chain H 2.75 3.06 2.81 2.87
Chain I 2.66 2.59 2.47 2.57
Mike A, Ron D, Al C, Joey or Jody F G, Kevin me I . Some didnt want their name out there.