I once used prismatics like you, then I took impatience to the knee...
Prismatics are a lie!! yeah they are good for withstanding initial hard and heavy attacks. but their regen/ recovery rate is beyond sad.
I was using a prismatic on my corvette for almost a year, thinking it was the grandest thing ever to have a massive shield that no NPC could destroy, until I started to realise in CZ that the rings almost appeared to never regen, I then broke my shields after living dangerously and found they had an enormous 13 Minute regen...yes, MINUTES
I then experimented with Bi-weaves, shields that I have always skipped until now under the "oh it's C grade, it must be trash" mentality, I was deceived. with a G5 upgrade and rapid regen effect these shields have never been breached past the second ring, I have only used 1 SCB in the entire time of using the ship.
I now use Bi-weaves on all my ships where possible. they are surprisingly effective if you put the engineer time into it! and in regards to your mamba, they weigh half as much as prismatics, so you may find a slight speed increase too!
