I usually carry a 642 or 638 in an IWB holster with one (1) speed strip in a wallet on the belt in front of the holster. When I empty a swing out cylinder revolver the gun ends up in my weak hand and I need to have the reloads in my strong hand. Carrying a strip or speed loader on my weak side would not be optimal.
I have started shooting revolvers in IDPA competitions and use speed loaders there. But I haven't found a way to conceal a speed loader pouch for daily wear, given the kind of clothes I can wear, and so use the speed strip. The little leather wallet that wraps around the belt is flat enough not to show through the sweaters I usually wear (weather permitting), and on those occasions when I have to ditch the sweater and tuck a shirt over the holster, the speed strip wallet is innocuous enough that it doesn't cause comment. I've never seen a speed loader pouch that is even remotely inconspicuous.
I have started shooting revolvers in IDPA competitions and use speed loaders there. But I haven't found a way to conceal a speed loader pouch for daily wear, given the kind of clothes I can wear, and so use the speed strip. The little leather wallet that wraps around the belt is flat enough not to show through the sweaters I usually wear (weather permitting), and on those occasions when I have to ditch the sweater and tuck a shirt over the holster, the speed strip wallet is innocuous enough that it doesn't cause comment. I've never seen a speed loader pouch that is even remotely inconspicuous.