I haven't got any SD card go bad due to too many writes. The two dashcams in my car records constantly and fills the memory in no time and constantly deletes its oldest recordings. I've had my HP-1 for probably 15-20 years, from when it came out, and still have its original SD card in it and I have that scanning every day and set to record in the replay feature. The only times I see issues are when the operative system of a device trash the file structure, or can be a power glitch or programming cable was pulled in the middle of a write, and have to correct the files that are corrupt or do a reformat.
The conventional frequency list are probably showing in what order you have programmed your frequencies as default, but you can click on any column and it will sort in that order, I.E. click on Frequency and it will sort in frequency order.
You can make duplicates of wildcards, one for each system, or you can set the scan list for one wildcard to be used in many scanlist, the last column for TG's and then only need to configure one wildcard for all systems with alerts&lights and file record and delay time.
When the scanner starts to scan it first compiles the list, that's the long delay, and if it detects that you have programmed the same frequency multiple times it will combine them and only scan that frequency once but check your different programmings if any of them match CTCCS or TG's for conventional frequencies. So it is a very effective scanning not wasting time scanning the same frequency multiple times in one scan cycle, as Uniden scanners do. Uniden scanners does exactly what you have programmed, sometimes a good thing, but Whistler tries to improve on your programming, making it more effective if you haven't managed to do that yourself. That's why it can't show on its display what it is scanning live at that exact moment, as it does it in frequency order, jumping between different systems, with trunked systems at the end to improve scanning speed.
/Ubbe