looking for a good single coil rda for testing mixes
Wasp nano is good and cheap.
It's cheap and decent for its price. It is no flavor monster.
Yep, cheap and decent, but airey as hell even full closed down, very overrated as a flavour chaser (too airey). I seriously don't understand why people continue to buy this plastic thing when you can get fantastic clones in stainless steel of top class rda's for the same price if not cheaper. The Sxk Hadaly clone from Fasttech for around $10 is one that springs to mind.
Anything from psyclone mods won’t let you down.
I agree with this. Best one in my opinion is the citadel.
I'm partial to the Hadaly because it lends itself to rather complex coils. Which fits my vaping style. The Citadel is great but gives me just a bit more spit back than the Hadaly.
I suggest searching the sub. There have already been a few good posts (recent too) on the same topic.
Single coil RDAs are best for testing, but there can be variances depending on the model. Personally I like the original recurve for a cheap flavor banger, I'd love to get an elder dragon as I've seen tons of people sing it's praises as well as people I know in my personal life. Then there's the Rye RDA. That's one I really really want to get. It's not exactly high end, but carries a little heftier price tag at around $70, but everything I've seen or heard about it says quality and supreme flavor and all the proceeds go to a good cause. If I was you I'd check into one or all of these.