Other shooters have had luck with the HKS speedloaders, but I have had trouble with all six that I purchased for my 686+. The problem has been that they do not reliably drop all rounds during a reload, frequently hanging on to one or more. This also requires an extra motion to pull them up and away rather than letting them be brushed off as the cylinder closes.
I expect that the S.L Variants are probably okay, but I opted for a moonclip conversion when I saw the $30 price. The moonclip conversion costs about $80 including 3 clips and additional clips are around $28 to $30 for 10.
[Edited by Guy B. Meredith on 02-20-2001 at 12:12 AM]