  A small deviation from scale invariance in the form of oscillations in the
primordial correlation spectra has been predicted by various cosmological
models. In this paper we review a recently developed method to search for these
features in the data in a more effective way. By Taylor expanding the small
features around the 'background' cosmology, we have shown we are able to
improve the search for these features compared to previous analyses. In this
short paper we will extend that work by combining this method with a multi
nested sampler. We recover our previous findings and are able to do so in 192
CPU hours. We will also briefly discuss the possibility of a long wavelength
feature in the data to alleviate some tension between CMB data and the LCDM+r
concordance cosmology.
