I know it sucks, but no cottage manufacturers use flick locks at present (that I'm aware of). Ruta Locura, Locus Gear, Gossamer Gear all use twist locks.
As much as I like flick locks, I don't think going to a +14oz pole is the right choice just for that. The 2 piece Gossamer Gear poles have been updated so they now expand to 55", which means you can likely use one as a mid-pole without any sort of jack or rock, which is a big plus. If you want a super tall mid-pole, you can actually pop the little cap off the top of a GG pole and screw in the lower section from the other pole, creating a pole that is really tall (up to 80"?) and quite stiff because the middle third is reinforced by being inside the upper section. If you do this, you need a little cap to put over the upper tip so you don't poke your shelter a new hole - a ti cup works well for this.
As a bonus, if you are a packrafter you can use this same setup (lower/upper/lower) in combination with the trekking pole paddle blades from Alpacka to create a sweet still water/river crossing paddle for just a few ounces.
If you want something a little stiffer than the LT4's, Locus Gear (currently out of stock) has some really nice poles. They're 3 section and a little stiffer, for around 10-11oz as I recall.
As someone who recently switched to a heavier pole with flick locks (BD Alpine Carbon Cork), I can testify that there is a big difference between a 4oz pole and an 7-8oz pole. Even though I've broken two (both times landing on them), I'm back to LT4's because they are so much nicer to hike with. If you are hiking in tough conditions (offtrail, over snow) then the stiffer pole is nice, but otherwise the extra weight will be a real downside on regular trails. So I love flicklocks, but not enough to go from a 4oz pole to an 8oz one - especially if the heavier pole also requires a pole jack (more weight and complexity).