I know since the M8 engines have come about there isn't as much interest in the older Twin Cams but I hope some will respond.
I just acquired a 2015 CVO RGU with 4,600 miles on it. When I was swingin the deal for the bike I had them add the 117" kit in along with a SEPST & Auto tune module. I also got a 60 month ESP to go with all of it, which is part of why I am going with the SE tuner.
Also adding V&H Power Duals head pipes and Khrome Werks mufflers to the mix when it is all being done. Figured why increase the engine size and not allow it to breath some also.
My bike is for touring and carving the corners while just having fun. I am not trying to win any light to light races nor am I concerned with being able to WOW anyone with my impressive dyno numbers.
With that all said and done the 117" kit is BO until mid July so if I am going to add a different cam or lifters now is the time for me to order the parts. As always I know some of this is subjective and some is just a dislike for HD bowing to EPA but what can they do?
So from what I am reading and know from past experience the SE-259 isn't the go to cam for torque right out of the door. It seems like a TC-24D/TC-25D or Woods or S&S might be a better choice but I'd rather stick with what's in the kit unless there is a VALID reason to change stuff.
Plan for now is to run the stock CVO heads until either next spring or spring 2021. Then I'll pull my heads during the winter and send them out to be ported.
And while we are talking about HEAD.....

oops heads, since I don't have anyone local who does everyone recommend I send them out to? Fuel Moto? Or buy some S&S heads? Or others?
I'm heading to Shark Week IX in Aug and was hoping to have this engine work done prior to me going but it isn't looking like this will happen at this point. So depending on when they finally get the kit in I may just have them hold it until riding season is just about over with and then take the bike over. I'm not 100% confident with the dealership where I bought the bike. At one time they were a pretty good shop but I am not pleased with the lack of attention they paid to this bike before it was sold as a used bike.