I bought a MR1 the other day because I heard it was a good starters marker. Bottom line it is!!! Better than the 98 custom in accuracy, cleaning, looks, and all around performance. I had to buy a low velocity spring at my local store though because the MR1 comes with a med velocity spring. This is a problem because most fields will not let you play unless you can set the fps to 300 or lower. It performed very well on my first two visits to the course. Shoots very straight and far. Has a slight natural curve to the left which I liked with the stock barrel. I will replace this eventually however. In 7 speedball games played I walked away with about 5 kills. Not bad for a new stock marker! If you are looking to buy a very good marker for playing in the woods or just starting off in speedball, you could do much worse! The MR1 is at its best in the woods though.
Buy this over a 98 custom. It is slightly better in everyway except mounting a scoop or red dot.