base grind and board tuning...

hey now,

As I mentioned here or another thread I got a full tune the night
I left Jackson (including microbrews!). My Donek had base repair
done to remove a few gouges and then a base grind on a stone. The
pattern is a cross hatch.

So now I am back up in VT and I have to say its like riding a
different board. I've taken about 15 runs with it and only the
last two or three did I start to feel comfortable on it again.

Have any of you experienced this after a grind? Its not that
there is anything bad going on, it was just different. I wonder
too if they may have used different angles on the edges.

And what a funny noise the base makes now skating off the lift
to strap in. Almost sounds like nylon on nylon.

Mike,

Base structure can make the board perform differently. I'm no the best guy
to consult on structures, but I can tell you that a linear structure will
make the board track a straighter line, while cross hatch structures will
assist more in turning. A medium cross hatch structures is probably the
most universal.

Edge bevels also affect the boards performance. We're finding that many of
the east coast guys are preferring base bevels of 1 degree and side bevels
of 1 to 3 degrees. Many of the western guys seem to find beveling has less
impact. I believe this has a lot to do with the demanding nature of the
east coast snow. The softer snow on this side of the country is more
forgiving.

A little information on base material for the other posters. Ptex is a the
brand name generated by IMS. IMS is a manufacturer in Switzerland.
Isosport is another base material manufacturer in Europe (not sure which
country). Crown plastics manufactures the durasurf material in the US.
Both IMS (ptex) and isosport offer extruded and sintered material. Crown
plastics (durasurf) offers only sintered materials. Hope that helps.

--
Sean Martin
Donek Snowboards Inc.

http://www.donek.com/
phone:877-53-DONEK

"Mike M. Miskulin" wrote in message
.44...
hey now,

As I mentioned here or another thread I got a full tune the night
I left Jackson (including microbrews!). My Donek had base repair
done to remove a few gouges and then a base grind on a stone. The
pattern is a cross hatch.

So now I am back up in VT and I have to say its like riding a
different board. I've taken about 15 runs with it and only the
last two or three did I start to feel comfortable on it again.

Have any of you experienced this after a grind? Its not that
there is anything bad going on, it was just different. I wonder
too if they may have used different angles on the edges.

And what a funny noise the base makes now skating off the lift
to strap in. Almost sounds like nylon on nylon.

"Sean Martin" wrote in news:847d4$4253755b$94401afa$17566
@STARBAND.NET:

Thanks for the structure info!

impact. I believe this has a lot to do with the demanding nature of the
east coast snow. The softer snow on this side of the country is more
forgiving.

Sean is always polite

Edge bevels also affect the boards performance. We're finding that many
of
the east coast guys are preferring base bevels of 1 degree and side bevels
of 1 to 3 degrees. Many of the western guys seem to find beveling has
less
impact. I believe this has a lot to do with the demanding nature of the
east coast snow. The softer snow on this side of the country is more
forgiving.

I personally find that side edge bevels only make a difference on firm pack,
as Sean says. But I do find that base edge bevels make a difference on
anything but powder. You can catch an edge even on soft hero-groom and a
base edge bevel of .5 - 1 degree can make a huge difference.

I've been playing around with edge bevels this season and have settled up on
the following:

3 side, 1 base on GS and freecarve boards
2 side, 1 base on all-mountain and freeride boards
1 side, 1 base on powder boards



I don't do enough pipe, park or rails to know what to do for that kind of
board.

Mike T