I've never had much luck with tasting pure flavor in any 510 dripping atty (bridged, bridgeless, sealed, unsealed, SR, LR, etc). So, I went the RDA route as well to test my juices.
So, I just make a LR microcoil on an IGO-L. Pop in a small (barely coming out of the coil on either side) cotton wick, pop it onto my Magneto, and test my juices that way.
When I want to test a new one, I just remove the wick, dry burn the coil, and add a new cotton wick.
And I drip my juice directly onto the coil/wick with the IGO-L cap off, so I don't even need to wipe anything down on the RDA.
Super fast and easy.