Just make sure that when you use your KIT (keeping in touch) days that you get paid a full day - or more than one day's SMP would be because the paid part of a KIT day is instead of a SMP day so you lose one day's SMP and then get paid at your hourly rate for however many hours you work.
Also, bear in mind that even if you're only in for a few hours that counts as one full KIT day.
Also, bear in mind that even if you're only in for a few hours that counts as one full KIT day.