Why would using EZ plugs make you prefer Cat6 over Cat5e? I can't see the connection, and it's not as if there's any good reason to be crimping a lot of plugs on in the first place (especially to solid core).
Because the CAT6 solid cores are stiffer and hold their line better going through the holes in the EZ RJ45 jack.
Why are you wanting 'straight strands' into your IDCs? I would have thought that fully twisted until the last possible moment and then trimmed off would be the better option.
Because the straightened strands sit really nicely in the IDC and are a doddle to use with the punch down tool whereas a twist doesn’t lie flat in the connector and is a bit more random where it gets cut off.
Why gel filled or conduit? What's wrong with normal air filled external cable as a reasonable middle ground?
Rats love to chew on electrical cable. They will dig up buried electrical cables for the privilege of doing so. Putting it in a conduit seems to stop the rats being able to detect it.
Plus no-one ever damaged a CAT5e/CAT6 cable running it through a conduit whereas nailing it to the wall while up a ladder? I’ve done that and unclipping 10m of cable you’ve just nailed up to replace it is a right pain.
And conduit looks much nicer than a whole line of network cables.
And conduit gives some protection against being cut by random vandals.
And the gel apparently protects against water ingress and shorting as a result in cables that are damaged inside. The air-filled external is really only a bit thicker on the final insulation to give some protection against being cut with a spade. And that makes it a right barsteward to work with.
I've done a fair bit of network cabling over the last 25 years, but never as my primary role. I'd pretty well guarantee that everything I've installed using Cat5e/Cat6 will happily support Gigabit. I'd never want to make any claims that it'd support anything higher unless I actually was able to certify it (and that needs significantly expensive test gear).
I’ve had a lot of sex over the last 25 years. I’ve mainly had good feedback and picked up a few things along the way. That doesn’t mean;
A. That I’m necessarily an expert.
B. That I’m necessarily any good at it.
C. That I’m necessarily in any position to advise others.
Just because you’ve always done something doesn’t mean you can’t move on to something better
CAT 5e is rated to support 1GbE. CAT6 is rated to support 10GbE up to 30m. The cost difference and working difference (in my humble opinion) is negligible so I would always go CAT6. Before I embarked on my current networking installation frenzy I attended Cable Monkey/Connectix’s network installer training. And their Optical Fibre course (because my original idea on my home install was to run 8 optical fibres to the various rooms in my home and put SFP or SFP+ switches on the ends to give me true future-proofing) and because I’m a sucker for this sort of thing, I bought the testing equipment, so if you need anything certified, in theory I could do it (but I’ve never actually tried).