We recommend that you update every 2 minutes. A timestamp should generally be applied in every request. For bulk import load and start-up-purposes, you may employ a timestamp of 0, which will give you the maximum number of items. The standard numbers of items returned are a maximum of 1000 for Transfers and Transfer Rumours whereas Suspensions and Injuries will provide 250 items or an unlimited number of data pages of 250 items each. The maxlimit-parameter allows you to control the number of items returned, e.g. top 5 most recently updated items.
The recommended pattern for requests, once you have done a bulk import, is as outlined below:
The advantage with this approach is that you get only the delta of items, i.e. only xml-items that are new since the last request.