Glad you like my reskins. Which "red pulsing effect"? The female arcanists use "blue-licking flame." The ones using "red pulsing effect" are the Blood Witches. Which ones do you refers?
To turn off any effect, use nifscope to open the file *.nif. If the effect is visible, click it. Otherwise, click the node (a white square, turned yellow on-click) where the effect is placed. For example, the "red pulsing effect" is pulsing at the top of the staff. Click the node at the top of the staff. Find which node titled as "spell" or "scene root". That is the effect node. Set the scale into 0 (zero) and you have turned off the effect. It is easier to do that rather than deleting the effect.
It might sound complicated but truly, it is easy to do in nifscope. Or, you might want to download SaibotLieh's Amazons. I use some of them as the base of my models.