If anyone wishes, I can start a quick challenge thread on Saturday or so where I'll be turning a low double-digit bankroll into $200+ within April, hopefully its first fortnight
(Please post if you wish - if hardly anyone posts, I can't be bothered to write it.)
Which speed to play depends on your strengths and weaknesses, in particular, whether you're patient enough to wait for a monster hand and to make tight folds when facing aggression in a non-turbo (regular speed). Non-turbos generally involve a lot of postflop play, whereas turbos require more precise knowledge of shortstack preflop ranges with ICM taken into account.
I have little difference in ROIs between turbo and non-turbo 45-mans (30%-ish plus-minus 10% at stakes up to $1), maybe because my sample sizes are tiny and I ran good at turbos and bad at non-turbos, but another reason is that I tend to lose patience in non-turbos and pay off the nits' nuts in situations where a call seems justified in the Nash equilibrium but is certainly unprofitable against the actual population.
I find that recreational players are more disinhibited in turbos :f_thumbsup:, however, the downside is that there must be more regs per table there because the session length is more predictable when you only grind turbos at its end, i.e. stop loading non-turbos/turbos 2.5/1.5 hours before the intended session end deadline (it sucks to be stuck at a single non-turbo table when you were planning to end the session, even though the $EV you make per minute is still decent in this case because you're very focused on the remaining final table, which is a high-stake situation).
Anyway, the traffic is so low at non-turbos nowadays that you have to load at least some of the turbos if you want to make a living with poker. (There are enough non-turbo scheduled MTTs to make a living, however, turbo and hyper MTTs are attractive too in terms of $/hour EV, just don't load turbos/hypers at the top end of the range of buy-ins that you're grinding.)
A big disadvantage of STTs to me is that they have no synchronised breaks, so if I wish to take breaks every 2 hours, I can only keep loading turbo STTs for the first 1.5 hours of the session, and non-turbos for the first hour only. Again, this is not too bad because it pays off to be focused on few tables in high-equity situations (the bubble and beyond), but bear in mind that you'll be able to play fewer STTs an hour than MTTSNGs.
Knockout 9-mans are generally softer than non-KO ones because recreationals love the KO animation and vibe, though KOs are somewhat harder to learn.
18-mans have breaks every 2 hours, so they might be a good compromise if you don't get too tired and don't need hourly breaks, however, the rake is rather high there like in STTs. It's absurd that Stars charge 12% rake on $1.50 turbo 9-18-mans (and Party's rake is similar on 9-mans) when the one on turbo 45-180-mans is <=9% at $1+ levels (10% at $0.50, 8% at $0.25).
On a side note, NL Omaha Hi/Lo 18-mans are much softer than Holdem ones, the problem is that the traffic is very low at Hi/Lo. I mean, Holdem 18-mans are still beatable, but Hi/Lo ones are at the god tier of softness.