I will replace the teak hatch guides this year - Why? because the old ones are split, grey, coming off ..... etc etc but mainly because th hatch does not slide easily. I have the new slides from Rudy and have coated them with cetollight. Do you have any recomendations for a "lubricant" which I can put on the fibregalss hatch or in the groves so that the hatch will slide easily? What is your experience with the ease of sliding the hatch open and closed? Thanks in advance for your suggestions James