Hmm. I'll run through my founder Catapult build at every stage and I'll explain reasoning and how DHS affects it, I think. Or how I expected to be able to build it with 2.0 DHS over the bugged DHS and the incoming 1.4 DHS. Current CPLT build at end of post for the TL;DR crowd

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Starting with the base C1, I first swapped out LRM15's for LRM10's, added 2t ammo and 2 heatsinks. This gave me endurance at the cost of alpha and AMS penetration. It's a good tradeoff most of the time atm, and I used it all the way until the patch that introduced DHS.
What I
expected to do once DHS hit was the following: Swap out LRM10's for 15's again, add 2 more tons of ammo (keeps endurance the same), add CASE and fill out the rest of the tonnage
(if any) with DHS, including the "20" heat sinkage in the engine.
Well, I did that, until I found out it was bugged. I think I also added Endo-Steel, but most of that went to armor I think.
So I downgraded back to LRM10's with 5t ammo and stuffed in 6 DHS. It's a snug build in that there are no crits left whatsoever. It's a standard engine build, by the way, I avoid XL for survivability reasons.
With the incoming DHS at 1.4 , ironically the new build will have 22,4 effective sinks, over the 22 it currently has. It's basically the same heat sinkage.
Now, what was the original goal of the build? Two and a half plus minutes of constant 2xLRM15 fire, good sinkage (but not neutral) for laser fire (yes, 4xML), keep Jumpjets and standard engine at 260+. Double Heat Sinks in the engine was practically critical to my original plan because it'd let me take out the 7 heatsinks I had to add all the hardware I needed (as outlined) and still have slightly better sinkage than I had before.
Well, that's effectively impossible with DHS at 1.4 and the irony is that I am just about as well served now as I'll be come November 6th.
For reference, here's the FULL build of my current CPLT-C1F:
LA:
LRM 10
DHS
LT:
MLas
2xJumpjet
CASE
2xDHS
CT:
2x MLas
Standard Engine 260
RT:
MLas
2xJumpjet
CASE
2xDHS
LRM Ammo
RA:
LRM 10
DHS
LL:
2x LRM Ammo
RL:
2x LRM Ammo
Armor: 384 pts Standard
(why anybody would use FF over ES without ignorance in the mix is beyond me)
Structure: Endo-Steel
Free Crits: ZERO.
Heat Eff. : 1.46
Firepower : 60
Speed: 64.8Kph
This is, literally, a build that come Nov 6th is going to be basically unchanged in heat buildup... unless I got my math wrong.
(edit: I'm aware that changing engine to XL and taking out Endo-Steel would probably let me reach all but one of those goals of mine and even exceed them ... but it means making my mech much more brittle under fire. I happen to be good at torso twisting and letting side torsos absorb a lot of damage...)
Edited by Scratx, 03 November 2012 - 02:59 PM.