Increased sawtooth stabilization leading to long sawtooth periods is a known observation of auxiliary heated plasmas. However, small sawtooth regimes characterised by sawtooth periods, tST = 20-100ms, that are shorter than observed in Ohmic regimes have been obtained at JET with Ion-Cyclotron Radio Frequency (ICRF) heating as well as with neutral beam injection (NBI) heating. At JET, decreasing the sawtooth period is known to delay the onset of NTMs. Results of two sawtooth studies from recent JET experimental campaigns are reported here.