Gem/Enchant Controls on Top Gear
Top Gear now has the ability to perform some management of gems and enchants on the gear combinations:

When “Keep” is selected, any items that aren’t fully gemmed/enchanted will be simulated as if they were based on your gem and enchant choices from the dropdowns. For example, if you just got a new neck and haven’t fixed it up, you can simulate it as if you had to determine if it’s actually worth keeping and spending the gold on.
When “Replace” is selected, all gems/enchants will be replaced with your choices. It provides a somewhat roundabout way to compare different gemming/enchanting approaches although that will require multiple sims.
This does not yet handle epic gems — I’m hoping to provide some capabilities for that in a future update.
Your gem/enchant choices are saved in your browser for each spec so once you set it up for the spec, you should be able to just keep using that without additional fiddling most of the time.
In addition, I’ve slightly redesigned the Top Gear results page to show the gem/enchant information more clearly and also just make the whole section a bit more readable:


