Another thing to consider with thicker/heavier braid is the fact that the counter-reported depth will be even further off relative to true/sonar-reported depth. You get used to how much 'off' the depth is with braid -- and especially when you're running 600' of braid in an aluminum spool -- so upgrading to something heavier will change that offset even more. Not a huge deal, but now your established math is off.
I'm not sure if the thicker braid increases or decreases backlash on the spool when banging bottom, something to ponder.
I run 200# cheapo Amazon braid with 15# balls, no snubber or tuna cord. If I can't get unstuck from the bottom I just cut off and re-tie -- there's plenty of braid left on the 600' spool. I pour my own lead ($11.50 per ball), so losing a setup is minimal pain (< $20 USD), too. I only lost 3 or 4 balls last year -- all to crab pots -- but that's it. Stizzla-proofed my boat.