As with all competitions you need to be in it to win it. If a swimmer has a consideration time they should enter.
We have had a number of similar questions on how the Qualifying system works, to help people out the following is an explanation:
Each event has its own maximum number, generally based on the pool time to run the event. E.g.50's have more than 200's.
There is a table for each in the conditions.
For 50m it's 28 per age group.
The target is to have 196 entrants across all ages in a 50.
This is done as follows:
1. All swimmers with an auto QT are accepted ( even if we have more than 28). That's why autos are tough.
2. The balance (up to 28) is made up from consideration QT's in each age group
3. If there are less than 28 after 1 and 2 above, we will distribute the spaces to the other age groups proportionate to entries. So if say we only have 20 15yr olds , the missing 8 would be added and spread across other excess ages.
Last year we accepted all that had consideration times, as we had space and could squeeze them in. It was one of the criticisms we had, so we will be stricter this year.
There is a whole statistical model to set QT's to make the above work.
If you look at rankings for 2017 swims for Kent swimmers you will have a good indication of whether a consideration will make it. However, YOU SHOULD ENTER IF YOU HAVE A CONSIDERATION TIME even if it is outside the top 28 (for 50's), because you don't know that all the swimmers ranked higher will enter any particular event.