Interesting that this thread has been raised again and no doubt some will be wringing their fists at what is being said. However as in all things we make choices and go our own way and clearly for you Douglas battery is the right thing for your requirements.
This has proved to be the case for myself, I have a fairly long line which if you take a trip round on my vid linked below will give you an appreciation of the track cleaning effort involved. I run Timetable days with friends and occasionally guests if I can get interest, thus a severe clean in DCC days prior to everyone arriving used to prove a task. I would try to do it the day before but typically it would rain overnight and need doing again on the day. As I have all sound perfectly clean shiny rails was a must as speeds are slow as is shunting of which there is a great deal with most trains being Mixed Passenger with Freight. I do however take some issue (personal that is) about using Aircraft Type RC, yes they are inexpensive but a real pain to use if you have also a Timetable Simplifier to carry as well as an uncoupling device. 2 handed Operation of the Plane RC’s is not for me or indeed my visitors.
What I have never done before is show all the varying systems Tx that I have together in one hit. This swill give one an appreciation of what they look like and the likely way to use them.
Top Left
A planet T5, this is my last Aircraft type of RC, it has been retained as I have been unable to get any other system to work the multiple functions on a scratch built Funkey which also includes Servo uncoupling. I am sure that it is possible and I managed to get most of it working with a Fosworks Tx and Rx. I think the solution may lie with Deltang.
Top Middle
Train Engineer, this one is a DCC one but I also have 3 others that do non-chip solutions. I like these as they are most suitable for single handed operation once one gets used to them, I less like their rather hungry use of the 3 AA’s required to power them, I have found rechargeable to be pretty well of no use on a 4-5 hour running session.
Top Right
Micron Deltang Rx, I bought the Deltang System as an experiment and it has proved pretty good with having 2 Locomotives and room for 10 more. With a lot of growling and help from Micron I have got 4 sound functions working with this. I think this will be added to for less used Locomotives remembering that I will only be able to have 1 moving at a time (remember my visitors). As I said this may be the way forward for my Funkey and when the round to it kicks in I will investigate that possibility. But oh boy does it take some time to get ones head round programming the system, the Deltang help guide is less than intuitive but GE Rik on this site and Micron got me there Plus a lot of encouragement from others especially Phil.
Bottom Left
Fosworks DCC Tx, note the 2 buttons on the right side which allow 12 sound functions to be actioned, plus my own printed reminder of these on the front, a larger version is on the back. I am very happy with this system the 2 x AAA’s Used to drive this and all the Fosworks/Peter Spoerer ones seaming to last almost indefinitely. Each of the Top Buttons can access 6 further functions by pressing and holding either the Red or Green button, pressing Red and Green together gives 3 more. Takes a little practice one handed but can be done.
Bottom Middle
Fosworks non-DCc Tx, again similar happy bunny using these. 3 buttons call the main functions of sound that I require. Button 3 on my Steam ones does the Safety Valve. Note that these can be ordered with an Inertia twiddly button, but I do not like that option so these days save a few quid by not buying a Tx with it fitted. That is a personal thing, but worth stating.
Bottom Right
Spoerer Live Steam Tx, note the 2 buttons one for direction the other for acceleration. The reminders are my own from a Dynmo Labeler. Fosworks took over the Spoerer setup when Peter retired thus the units are very similar.
Note my love of Lanyards, all have been modified in one way or another to take them using split pins and webb bought printed Lanryards. In the scheme of things a £70 or upwards Tx is better hung round your neck than dropping onto a concrete path.