What factors help you decide to fish this way with chironomids?
Fish highly distributed across the water column? Shoals/sloped bottom? Calm day shallow water? Others?
At the lakes I primarily fish (Crane Prarie, Paulina, East Lake and a couple others less well known), wind is critical...ideally, just enough to create a bit of surface chop which makes the fish less wary and adds movement to the various subsurface methods. If the wind picks up substantially, one of my go to methods is to drift a presentation covering a large area, and if I start picking up fish put a small buoy over the side and either anchor fish that spot or just make shorter drifts through it.
When the water is glass calm, however, the fish are much more wary and selective, perhaps a 'if I can see them, they can see me' situation. Under these conditions, smaller flies cast on a floater with long flouro leader, presented with either zero or very slow retrieves, is often the ticket to getting the takes other set-ups won't provoke. Under these conditions the water clarity is usually excellent because of the glass conditions, so I'll slow move under electric power in the shallows until I see fish, anchor as quietly as possible and start making the least noisy casts possible.
I've found in these situations the takes can be very subtle, so instead of a full 'rear back strip set', I'll just tighten the line with a short strip if I suspect a take and if I missed the take just leave the fly in place having been minimally moved.
Ideally, I'll take 5 knots of wind every time over less or more.