I think for accuracy you'd need to lose the feifels.

Hybrids were by no means unusual in the closing stages of the war when resources were scarce, and may well have cropped up from time to time before then as battlefield conditions necessitated, but the air filters were only ever fitted on early Tigers destined for the DAK and some parts of the eastern font where dusty conditions were anticipated in summer.

The air filters are VERY easy to remove on an HL tiger - just unscrew then fill the screw ole with a little putty and you're done