Our club as 2 differant types of ETS and also 3 or 4 members that still use ordinary clocks,everything works well,not sure what you mean by how to manage between both lots of clocks,you will still find that the best flyer in your club will still be the same with ETS infact he is likely to be better as with ETS you tend to clock in more pigeons.There will never be a time when fanciers are on equal terms as it is all down to how good your birds are.if you live next door to another member and you have a bird each from the race if yours walks over a pad and is clocked whereas he as to go into the loft and take a rubber off and clock it in you cant really say that he,s on equal terms with you, but then again neither is a guy who as open door trapping ,or a speed trap against someone say who as a sputnick,as for leaving the pads inside the loft after trapping you could take them out after but most fanciers have them permently fitted inside the loft,I personally take mine out after the season as finished.At the end of the day its still all about getting your birds home first whatever clocking and trapping system you have.