Alright you skillful FDL pilot... let me give you 3 hints that you've seemingly never heard of:
1.) FDL with 785MJ, 1 active 4A SCB and 5 active fixed Pulses:
http://www.edshipyard.com/#/L=70O,5TE5Rg5Rg5Rg5Rg0_g0_g0_g0-801Q01Q,317_7_6Q6Q9Y725A,7Sk7go7go7dg9pC
2.) You schould activate your shieldcell not just before you lose your shield... thats why you will not suddenly lose your shield even when you need to switch off a module before
3.) bind the submodule menu switch to your joystick and you'll need not even one second to switch on/off certain modules... if you need longer, you need to practice more
An irony is not neccesary here mate, because:

1. i flew with similar build at february, howerer better is with a 4B/2B cellbanks, they will get a more MJ than 4A and allow to put 4D sensors. 4A life support is useless, switch to 4d will give some power for stronger shields, the same as armour. Your build is a slow and agile like a turtle in a mud, and 5 pulses, are nice for shiedls, but weak for hull. There are much better builds than you propose.
2. Everybody know this.
You can turn off scb/switch next by power management, but not switching different sets of weapons in meantime, and turn main weapons offline for a few seconds, because enemy will eat you. Switching scb/weapons during the battle should just be balanced by a player in a some reasonable way.
3. Everybody have this.
Hey man , could you please just explain me that ? i am perhaps a newbie but given the maths , as it seems that even my courrier with 2A shield boosters has more shield than a clipper , how can a FDL with stronger base shield and 6 utilities be weaker than the clipper? Perhaps you take scb into account , but i won't cause you can't rely on scb once the fight is not well engaged ( it will just delay the inevitable , if you got shields too weak vs eni weaponery , you're doomed anyway !). What do i not understand the right way there ?
Thanks
( ps: i am curious cause working to buy a shiny clipper

)
Yes mate, of course i take a SCB into a count, they are the key. 400-500 shields with 4 pips is pretty much. At first of my playing i though the same about base shields as these guys, but last half of the year verified that, and now i think the base strength is not much important as i though. Of course it cannot be ridiculuos low, however more important is overall MJ capacity in base+SCB's.
What makes you think that was me, fighting in this video?
Hmm... yep, my fault, your nicks 'sounds' similar for me
Allows to keep the pressure up. I like pressure. Constant pressure and they start fearing you. Fear leads to hate, hate to suffering.. you know the story
Mate, i got buit what i proposed - 3 canonns and 2 beams - i need to admit - works pretty good. The advantages of huge slot are fully used (you just need to keep enemy in line or below of your ship). And you have right, cannons are not affected by a chaff at close range, and basically they are for close range, so it works perfectly. They are good solution for ships wit a power problem, such as FDL. Capacitor of FDL can handle it.
MJC said:
True. Maybe a good build will be a 435 MJ 5a prismatic shields, but without cellbanks, instead of them - an armour and hull boosters. Or maybe lower class shields to get stronger hull booster.
Hull tanking was made in Elite: Legacy, one of the book. One of main charakters used an Anaconda with a lot of hull boosters (and poor shields for baiting).
Good armour is a cost of ship or two ships, so rebuy cost could be doubled, and ship will be noticable slower, i think thats why this way of play is not popular. And that creepy sound of damaging hull.
Hull tanking just need a balls
And hull tanking have one more advantage, as you wrote - you dont care about shields and you can get 4 pips to weapons and 2 to engines, to keep agility.
FDL vs FAS - i think in most cases FAS win. Mass locked FDL with lowered shields will not be able to flee.