Riggle VTAF question


Hi, all.
I have a question which I hope will prompt plenty of opinions and help. I listen to albums via a Rega P-25 and Jolida phono preamp. I added the Pete Riggle VTAF successfully a couple of years ago (or maybe just last year). It raises the tonearm as you may know. Well, I just cannot seem to make myself use the shims for the cartridge that Pete suggests, so basically, I can't really adjust for VTA since when the adjuster wheel is rotated until it can't rotate anymore (to the top), at that point only my 180 gram vinyl plays with the arm level. Otherwise I am always slightly higher at the rear of the arm since I haven't put on the shims for the cart. The reason I don't want to use the shims is I'm now using expensive (to me) carts (Shelter 501 and the Denon 103R -cheaper but to my ears sounds better than the shelter for some reason) and I don't want to mess them up. Bottom line questions:
1. What are your thoughts on using or not using the shims? 2. Is there a way to raise the platter with a mat or something that could solve my dilemma? I had been using the Iron Horse acrylic platter (same height as glass), but just switched back to the glass right after I installed the denon cart.
3. Has anyone else out there had this problem (er. . . dilemma)? If so, what have you done?
4. Not totally off topic, but while I'm posting, any reason why the denon might be sounding better than the acclaimed shelter? (I know - the denon is acclaimed too) The styli sure sit differently. And, if it matters, I use the Baerwald alignment by using the Geodisk (not rega). Thanks in advance for any comments about any of this.
chapin99
Thanks for the responses! I think Maprik has the best option for me at present. I do have the Riggle counterweight for the common (wo)man, so plenty to mess with there, but hearing that the Iron Audio (which I just pulled off the table) is bad compared to glass plus Achromat, I am very excited to actually try that blessing in disguise and will look into doing just that. I don't know what the cartridgeman isolator is, but may want to do that just so I can dial in VTA for sure!! Thanks again - this is a great forum and I appreciate your taking time to help me. Sorry I forgot in the original post to mention having the counterweight (which could affect solutions). Also, don't really know why I am so opposed to the shims, but it just doesn't sit right with me. Maprik, if you have any other interesting tidbits about the P25, please do share! Now I feel good my glass platter wasn't sold when I got the Iron Audio. So many good reviews of it (like the shelter cart), I couldn't believe it wasn't so great on my table. Alrighty - thanks!!
Hi Chapin99,

I was wondering if you got the Achromat and how it worked out for you?

Maprik
Hello, Maprik! I have the VTAF and Achromats on all six of my tables. It does everything that the $500 Living Voice Mystic Mat does, but obviously much less expensive. There are also carbon fiber spacers available from Millenium Audio that fit between the cartridge and headshell. There are different sizes and they eliminate the problems mentioned in the post above.