I was on Lantus, then Levemir, then Tresiba, and finally Omnipod pump.
Lantus is quite short acting, and acts as a short acting insulin if injected accidentally into a vein.
Levemir is quite short acting, too, but isn’t sensitive to injecting into veins/capillaries.
Tresiba is a really long acting insulin, so it takes a few days for a change of dose to be effective. If switching basal doses for weekends then Tresiba wouldn’t be the right insulin in my view (I’m just a T1, not a dsn or consultant).
I ended up being referred for a pump, and Omnipod is great for me. I don’t have any reaction to the sticky pad or the cannula, and can tweak for DP and reduce basal for activity. For someone with unpredictable or varying days, I would advocate trying Omnipod.