yeah your mod was designed specifically for those bottles and they work well in it. I'm using a thick walled crush proof pure silicone tubing on these and even with a fairly sharp curve they do still flow very well with no restriction, but it is possible to kink it if your not aware of it when the bottle is re-installed. I actually left your hose just a little longer than I usually did thinking it would make bottle swaps easier for you 2 but I included some extra hose for you to play with too... I believe yours are set up to where the bottle cap winds up falling to just outside of the bottle recess when the hose is relaxed but extended straight down, I've tried mine like this too and have since discovered that while it may make bottle swaps a little easier it makes reinstalling the hose kink free a bit more of a pain...
you might want to try to shorten that hose just a little and see if that works better for you, take it off from the top like I showed in my video and then trim about a 1/4" off or so and reinstall it to the 510 threaded pin, make it long enough so that when the hose is extended straight down relaxed, that the bottle cap winds up just falling inside of the bottle recess instead of just outside of it as it is now... this will require you to pull and stretch a little more against the hose when changing the bottles like I did in the video, but this hose and it's attachments can take quite a bit of pulling, and with the hose a little shorter like this it kinda pulls it into place a bit easier and kinking will become much less likely pretty much eliminating the chances of kinking it ... balancing the hose length is a tradeoff between easier bottle swaps vs easier hose placement upon reinstallation but don't be afraid to play with it, if you ever need more hose or anything just let me know and I'll send it to you but you should have enough to play with there really
you might want to try to shorten that hose just a little and see if that works better for you, take it off from the top like I showed in my video and then trim about a 1/4" off or so and reinstall it to the 510 threaded pin, make it long enough so that when the hose is extended straight down relaxed, that the bottle cap winds up just falling inside of the bottle recess instead of just outside of it as it is now... this will require you to pull and stretch a little more against the hose when changing the bottles like I did in the video, but this hose and it's attachments can take quite a bit of pulling, and with the hose a little shorter like this it kinda pulls it into place a bit easier and kinking will become much less likely pretty much eliminating the chances of kinking it ... balancing the hose length is a tradeoff between easier bottle swaps vs easier hose placement upon reinstallation but don't be afraid to play with it, if you ever need more hose or anything just let me know and I'll send it to you but you should have enough to play with there really