Currently I have chosen Thermo Block for my Prismatics which gives around additional 6% of thermal resistance (with boosters) compared to reinforced only. I'm using one thermal resistant and resistance augmented shield booster each, the remainder is heavy duty boosters. Some other guy recommended Hi-Cap instead and Multi-Weave could be another reasonable possibility.
What do you guys run on your reinforced shield generators?
I try to play to the inherent strengths a module already has when I'm engineering, rather than trying to engineer my way around a module's shortcomings.
In the case of bi-weaves, they are noted for having poor mega-joulage, but a superior recharge rate.
Following that lead, I get the message that megajoules ain't where it's at, so I should be tuning this thing for resistances - the kin and exp resists are already good, so Therm it is.
On to the choice of secondaries, and hello recharge rate - already pretty damn good, let's make it nuts! Fast Charge, please.
Looking at your example, Prismatics, different story - these are very strong shields in terms of MJ value, but the regen rate is extremely poor.
Same principle - the shield is built to be big! sod the resistances, we can tune those with shield boosters later - Reinforced all the way.
No point going for fast charge this time on secondaries - 15% of naff-all is still naff-all, so I'd go hi-cap and get moar megajoules!
Multi-weave is an option I'd consider for ships with fewer utility slots, but if you've plenty of utility slots, you can sort the resistances there so my ethos of just amplifying what it's already good at nudges me toward Hi-Cap). Just don't forget your recharge rate is still rubbish - save some slots for heatsinks and SCB's, or have a buddy with healy beams handy!