My 10440's finally gave up ,I wasn't too impressed with them anyway .I gave it a lot of thought and just bought some DSE 801 manual batteries.The 18650 mod worked better but was to large and heavy for me.I think the button location and feel are as close to perfect as they could be on the stock batteries.On my box mods I have five different switches and none of them work as good as a stock battery.Different strokes for different folks I suppose.I can always dig them back out if I need them .So now my main sled is DSE 901 atties on a Kissbox passthrough or DSE 801 battery.That seems to me to be the least amount of effort I can put into vaping and still get what I need.
Here is the best switch I have found so far for box mods.Omron SS-5gl 5A SPDT