I spoke with Dean from Starizona and he said to remove the Fastar compatible 2ry or Hyperstar from your scope (if you cannot unscrew your Hyperstar let me know). I had to hold the base with my fingers very firmly when I first undid the locking cap (then clean my greasy finger prints off the corrector plate

so I suggest using a tissue or soft cloth to hold this still). Now I hope you have small hands (I fortunately do). With the 2ry mirror or hyperstar removed, place your hand thru the hole and hold the baffle on the inside while you turn the outside to lock it in place. When your scope is down, the 2ry should go back in place such that the word Fastar can be read from the front, if not loosen it and rotate until aligned and retighten so that it is aligned properly so you are less likely to have to recollimate. I hope this is understandable but that was why Dean at Starizona wanted me to call him as he felt it was hard to explain in an email. Let me know if you need any more clarification. He also suggested some Tungsten lubricant (he suggested a 3M product) but DO NOT spray it on, Dean sprays it into a lid or can then uses a small brush to paint it on the male thread that is on the locking plate and he said it needs a few hours to dry. I will have to try the local fishing stores as Poita has suggested (thx Poita).