I was laying out the guide spacing according to a chart from the internet, actually several just to see what the differences were between them and most of them were close to the same distances. I have 3 9' blanks, a 4 6 and 8 wgt. There some minor differences but each blank had at least one guide that was close to a joint. My question is, are there any potential problems putting a guide at each joint? The usual way would be to put thread at the joint and then an inch or two is a guide and more thread. All that thread, to my eye, looks a bit crowded, a fair amount of thread in a small area. I understand that flat spots are to avoided so I work the spacing to avoid the flat spots. Any consideration need to be given to the caster who may need a rod that casts the longer distances aka too many guides or not enough. Hopefully I have been clear.

Robert,
If it works out, I prefer to put a guide right at the joint. That way, I can wrap the joint and the guide with the same thread wrap.

Never any issues.

Good luck

Agree with Roger. Moving a guide or guides a bit to make this work will not significantly affect rod performance. Seems like it always happens with my fly builds.

Another alternative would be to use a regular thread color that closely matches the blank color when the thread is wet at the ferrules. This is done to make the ferrule wrap less conspicuous.

i have never used used a ferrule wrap or intentially placed a guide on a ferrule in over 50 years,,,just lucky i guess, but usually used one or two more guides than called for..maybe that,s why i,m lucky. lol.

Ross's method of matching the rod blank is what I use when the ferrule has no close guide.