I'd tend not to use 'normal' masking tape for this type of job, especially in the relatively small areas involved with 1/72nd scale, although it's ok for covering areas away from the edges, if spraying.
A low tack, smooth tape is needed, in order to be able to press it down and 'seal' the edges, to prevent 'bleeding', where the paint creeps under the tape, leaving feathers of unwanted paint. The low tack will prevent the previous paint layer being lifted when the tape is removed (maybe not with acrylics!!), does not leave an adhesive residue, and can easily be removed and re-positioned. Apart from not easy to obtain specialist tapes, the only readily available type in the UK is Tamiya masking tape, available in various widths. It's more expensive than the ordinary decorators tape, but designed for the job and works beautifully.
Save the other stuff for taping parts together whilst setting, or masking large areas.