That's a bummer spinner I got almost all of mine preloved and they've been fab
although you can tumble dry for 10 minutes on low to soften up bamboo and hemp, it's pretty normal for them to get rough after a few washes especially in hard water.
V3 easyfits do us barely an hour with nothing in, so I fold a hemp booster in half lengthways and pop it under the "line of fire" as it were. They do 3-4 now, and I have a baby who wakes at night for a nappy change because he won't tolerate being wet let alone dirty! V2s need a bamboo and do the same amount of time, miosolos with mioboost will do 5 but I don't normally let it go that long because I'm a hippy parent with a Gina Ford baby so change at certain proscribed points of the day
I haven't tried BG.
I have a stupidly large stash, and use different nappies for different things. If he's got a rash I've got a couple of days worth of cotton Kushies. They're cheap and very basic, and prone to compression wicking if not boosted enough or changed regularly, but the leg elastic is pretty loose so they allow a bit of air in. I've got 15 "easies" ie easyfits and miosolos which are our regular nappies and I count my 3 pockets (fluffy yellow dudeybaba, Cat In The Hat and James the Green Engine WAHMs) as easies too. They go to see the health visitor, or my parents, and are good for dp who had a stroke last year and still has a few troubles with fine motor on the affected side.
Then there's the cotton fitteds I use under woollies when the teething gets really bad. I don't quite have enough for 2 days though so it's a bit intermittent on those I'm too lazy to fold prefolds properly and the bamboo fitteds for night time.
I also have 30 or so prefolds and a vast array of boosters and inserts of various materials. I've used them all at various points of our nappy journey. Watch out on the preloved facebook pages - often people are getting rid of bundles really cheaply and it's definitely worth having a few different things to try rather than going "Oh that £10 nappy didn't work, I'll buy a new type"
FWIW, miosolos and easyfits are about the same price on 3 for 2 as EUC preloved ones although you don't get the range of prints. So keep an eye on store promotions. I used some of ds's birth present vouchers on nappies, and no-one thought badly of it - quite the opposite in fact 