"HELP" tired Koetsu

Great Forum Gang! MY DILEMA: I have used a Koetsu Rosewood for over 20 years. I have had it retipped once[about 5 years ago and it is tired again. Should I retip it again? or invest in the Shelter 501? I have "never" heard the shelter however; by reading "between the lines" here and elswhere it sounds like it has a similar voicing [tonally] to my beloved Koetsu[lush].I use the Melco table and 2 tone arms 1) sumiko -The ARM and 2)the ET-2[heavily tweaked].The koetsu performs well in both arms. I also have a Stax [12inch model]in the closet somewhere.As I am sure most of us vinyl "dinasaurs" realize arm/cartridge synergy is of paramount importance.Do you think the shelter will work as well as the Koetsu with any or all of these tonearms? The koetsu was magnificent in the ET-2 and was hoping the shelter would be as well.Of course- I am open to other suggestions and recommendations. Cheers David.
I just read the IAR review of the MDB cartridge. It gave it very high praise. It is available for $5500 for the basic model from Damoka Distribution in NY.

If you read the description, you find it has a special diamond shape made in Switzerland. This leads me to believe it is a European made cartridge. They also say it sounds exactly like the master tape, and has none of the "lush" sound that "romanticizes" the music. What that really means, if you read between the lines, is that it is like the other European cartridges that have all the right "audiophile" characteristics, but are lifeless and sterile. Just what I would expect from another Euro cart. If you like the Koetsu, FR, and Shelter, expect a big letdown from this MDB cartridge. I haven't heard it, but the warning signs are there.
Moncrief is not just any "toe tapping cretin".(I just couldn't help myself, stealing a line from his Well Tempered Lab review back in about 86)He is one of the only reviewers with any credibility left. I never took him for one to admire the qualities you mention.
Firstly. for $5500 donero's it better sound like the master tape[whatever that sounds like].For that kind of money there are some great blues bands in my area that I could hire every Saturday for the better part of the year that would sound "better" than the master tape! All kidding aside...I do appreciate the input; however thats a little over the top for my budget... as my better half already thinks I'm a certified wacko as it is.
Maxgain, I have had a number of disagreements with Moncrieff's opinions in the past. I have no way of knowing what this MDB cartridge sounds like personally, and he may be right on the mark.

But after reading enough reviews, you can sort of judge what the guy is saying by certain statements. And add to that the typical sonic flavor of the rest of the stable of highly regarded Euro carts, and the conclusion that I'm obviously jumping to, is pretty clear. I've heard similar comments about alot of Euro cartridges, and the fact is that they're real good at tracking and getting all the steps right, but they can't dance.
Twl, I have also liked the cartridges from Japan myself. I was a big fan of the FR you mentioned and the old Dennon 103D, I owned a Shinnon Red Boron Improved(not perfect but fun), loved the Talasman Virtuoso Boron. Never could affort the Koetsu thing( a friend had a "nude" Rosewood Signature) The best cartridge I ever owned though was a chain smoking Euro trash unit. An old EMT. Man I wish I had that thing back!
I bet the Shelter is very good. I just wish the thing put out some more juice. Do they have a web site? I can't seem to find anything about them or anyone that sells them.