Kendall: from a safety point of view there is no challenge in sailing with the board up. you will notice little increase in the boat's heal board up or down. i find the M15 is tender to about 15 degrees of heal and then really firms up. i've have 'neglected' to put the center board down after a spell of motoring or when going from a downwind run to upwind. without the centerboard down one WILL notice is the boat will not point to wind well and will loose a lot of ground because of leeway. IMO a good way to 'race fair' between a potter 15 and a M15 is to make the M15 sail without a centerboard (does that show how fast a M15 is ... or how slow the P15 sails?) so ... if you just want to 'sail' with no concerns about performance have a fun time. if lack of sailing qualities will cause you frustration (and/or there are some P15 on the water to cause you shame) wait for your new centerboard. dave scobie M15 #288 'Scred' (yes, i have finally named the boat) kdocter@bellsouth.net wrote: Does anyone have any idea what sailing with a CB up would do to your sailing experience? We were hoping to take "Vaya Con Dios" out for it's maiden voyage (in 25 plus years) next weekend. I just discovered that Bob (Montgomery Boats) does not take credit cards. I was forced to mail him a check and will have to wait longer than I had planned for my new Cb to arrive. So my question is, how would the M-15 sail without it? Can I still go if the winds are light? Kendall Docter M-15 #164 New Name! "Vaya Con Dios" Spanish for "Go with God" --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now.