Hi,
I've been using an unpressurised after market basket and handle with my Delonghi Dedica for a while. It makes just OK espresso. I dont think my grinder is up to scratch tbh.
I thought I'd try a pressurised basket, but for some reason the espresso sprays out of the spouts laterally, making a huge mess, as pictured. Obviously this didnt happen before.
Any idea why? I tried a finer grind, distributing the coffee better, and tamping harder and more evenly. No cigar.
(Why a pressurised basket? The best espresso I've ever had out of this particular machine was with the stock handle and stock pressurised basket. Why not use those then? Because the stock basket doesnt grip the handle well. It falls out into the knock box when you bang it. I hate this with a passion)
You might try a bottomless portafilter with the pressurized basket. That way the espresso will be directed down to the cup instead of having a path out to the sides